Reading Room · Numerology · Method
How is a life path number worked out, and where did the idea come from?
Numerologists add the digits of a full birth date, usually month, day and year reduced separately, until one digit remains; many keep 11, 22 and 33 as master numbers. The method appears in L. Dow Balliett's 1908 book. Its Pythagorean pedigree is mostly later legend: Pythagoras wrote nothing, and one controlled test found no predictive power.
Facts checked on against 8 sources, 6 of them museum, university, archive, library, government or primary texts.
Key facts
Every line comes from a source listed at the bottom of the page. The small numbers point to it.
| c. 570–490 BCE | Pythagoras lived on Samos and later at Croton in southern Italy. He wrote nothing, so everything known of his views comes from other people's reports.1 |
|---|---|
| 5th–4th c. BCE | The Pythagorean Philolaus held that all things are known through number; Aristotle later reported that some Pythagoreans treated things as being made of numbers, a claim scholars still debate.2 |
| 2nd c. CE | Nicomachus of Gerasa wrote a now-lost Theology of Arithmetic that tried to match the numbers one to ten with the pagan gods, an idea Iamblichus and Proclus took up.2 |
| c. 200 CE | The word gematria first appears in the 29th of the 32 interpretive rules attributed to Rabbi Eliezer ben Jose the Galilean.3 |
| 1908 | Mrs. L. Dow Balliett of Atlantic City published The Philosophy of Numbers, which adds month, day and year to find a person's birth number and names 11 and 22 as master numbers.4 |
| 1917 | A 1917 edition of Balliett's How to Attain Success Through the Strength of Vibration, catalogued under symbolism of numbers, entered the Library of Congress collection.5 |
| 2017 | Psychologist Jeremy Genovese published a test of birth numbers against Nobel Prize winners from 1901 to 2010 and found no departure from chance.6 |
The arithmetic, step by step
A widely used modern method reduces the month, the day and the year separately, then adds the three results and reduces the total again until one digit or a master number remains.7
In that system 11, 22 and 33 are left unreduced, so the possible life path numbers are 1 to 9 plus those three master numbers.7
Numerology writers do not agree on a name for the figure: it appears as the birth number, the life path number, the astral number, the fate number and the Fadic number.6
Genovese pointed out that when master numbers are kept, the order in which digits are grouped can decide whether an 11 or 22 ever turns up, so the same date can yield different results.6
The Pythagoras question
Detailed accounts of Pythagoras were written about 150 years after his death and survive only in fragments; later writers recast him as a semi-divine founder of all true philosophy.1
The early report closest to a numbers-centred Pythagoras comes from Aristoxenus, who said he likened all things to numbers; scholars disagree on how much this meant.1
Some scholars argue that the tetraktys and the special status of ten belong to later Neopythagorean writers rather than to Pythagoras himself.1
Balliett's own books credit Pythagoras with teaching that the heavens and earth vibrate to the digits, and one carries the subtitle 'a system of numbers as taught by Pythagoras'.4
Letters as numbers: gematria and isopsephy
In Hebrew the letters double as numerals: the first nine count as units, the next nine as tens and the last four as hundreds. Gematria reads a word through the total of its letters.3
Rabbinic tradition read the 318 servants of Genesis 14:14 as pointing to Eliezer, whose name totals 318. The Jewish Encyclopedia notes that some later Jewish scholars viewed such readings skeptically.3
Greek letters also had number values. A verse quoted by Suetonius mocked Nero because his name in Greek letters totals 1005, the same as the phrase saying he killed his mother.8
Where the modern birth-date method appears
Balliett's 1908 worked example takes a man born January 17, 1872: month 1, day 1+7 = 8, year 1+8+7+2 = 18 = 9, giving 1+8+9 = 18 and a birth number of 9.4
The same book gives letters values in cycles of nine, A being 1, so that names can be reduced to a single digit alongside birth dates.4
Genovese, citing a 1997 book by Dudley, describes the origins of modern numerology as obscure and names Balliett as a possible inventor who may not have been the first.6
What the tradition holds
How practitioners describe it, in their terms. Described, not endorsed.
Numerologists treat the life path as a core number, comparable to a Sun sign in astrology, that describes what matters to a person and how they meet life.7
The same tradition stresses that the traits tied to a number are not a fixed script, since each person chooses how to respond to events.7
Balliett taught that each person carries a name vibration and a birth vibration, and that comparing the two shows what kind of work a life is meant for.4
Master numbers carry special weight: Balliett described 11 and 22 in a birth number as a sign that a guiding master came with the person at birth.4
What the evidence shows
What historians, scientists and controlled tests have found.
In the one direct test found for this article, birth numbers of Nobel laureates from 1901 to 2010 were spread no differently from chance, and the author concluded the results gave no support to numerology.6
The same paper found no difference in birth numbers between prize categories, and noted that numerologists rarely define the 'vibrations' they invoke.6
Genovese, following Dudley, states there is no evidence the ancient Pythagoreans used the divination methods of modern numerologists, even though they did give numbers qualities such as male and female.6
Historians of philosophy stress that Pythagoras left no writings and that much said of him is later legend, which leaves the modern attribution without early support.1
What we worked out
Not stated outright by any one source. This is our own arithmetic or reading of the sources cited.
- Worked example for a date of July 14, 1990, using the stepwise method: month 7; day 1+4 = 5; year 1+9+9+0 = 19, then 1+9 = 10, then 1+0 = 1; total 7+5+1 = 13, then 1+3 = 4. Adding all seven digits at once (1+4+7+1+9+9+0 = 31, then 3+1 = 4) gives the same 4 here because no master number appears along the way.7
- Balliett's 1908 procedure (reduce month, day and year, then add) is the same order of steps the modern stepwise method uses, so the core arithmetic of today's life path number was already in print by 1908; the extra master number 33 does not appear in her rule, which lists 8, 9, 11 and 22.47
What we couldn't confirm
- We could not confirm when the phrase 'life path number' was first used, or that Juno Jordan (often credited with shaping the modern system) coined or popularized it; we found no library or archive source for her role.
- We could not confirm the first edition date of Balliett's How to Attain Success Through the Strength of Vibration; we saw only the 1917 Library of Congress copy, while Genovese cites a 1906 Balliett title.
- We could not confirm who first added 33 as a master number.
- Apart from Genovese's Nobel Prize study, we found no controlled study testing whether life path numbers match personality or life events.
Sources
Museums, universities, archives and primary texts first. We paraphrase; nothing is copied. We never cite Wikipedia.
- Stanford Encyclopedia of Philosophy: Pythagoras. Read on · University
- Stanford Encyclopedia of Philosophy: Pythagoreanism. Read on · University
- Jewish Encyclopedia (Solomon Schechter and Caspar Levias): Gemaṭria. Read on · Encyclopedia
- Internet Archive (Cornell University Library scan): The philosophy of numbers; their tone and colors (Mrs. L. Dow Balliett, 1908). Read on · Archive
- Internet Archive (Library of Congress copy): How to attain success through the strength of vibration (Balliett, 1917). Read on · Library
- Journal of Articles in Support of the Null Hypothesis, vol. 13 no. 2 (Jeremy Genovese, Cleveland State University): A Test of Numerology: Do Birth Numbers Predict Nobel Prize Winners?. Read on · Peer-reviewed journal
- Numerology.com (practitioner site): Life Path Number. Read on · Reference
- LacusCurtius, University of Chicago (Suetonius, trans. J. C. Rolfe, Loeb edition): Suetonius, Life of Nero, chapter 39 and note 125. Read on · University