Gematria Numbers: Facts About Well-Known Totals

The arithmetic of eight numbers that come up often in gematria, and where tradition has noticed them.

Eight numbers at a glance

Number	Prime factors	Triangular	Fibonacci	Where it appears
13	prime	No	Yes	echad (אחד) and ahavah (אהבה) both total 13 in Hebrew.
18	2 × 3²	No	No	chai (חי, “life”) totals 18; gifts are often given in multiples of 18.
26	2 × 13	No	No	The four-letter divine name (יהוה) totals 26 by the standard method.
86	2 × 43	No	No	Elohim (אלהים) and hateva (הטבע) both total 86.
318	2 × 3 × 53	No	No	Eliezer (אליעזר) totals 318, the number of men in Genesis 14:14.
611	13 × 47	No	No	Torah (תורה) totals 611.
613	prime	No	No	Jewish tradition counts 613 commandments (mitzvot).
666	2 × 3² × 37	Yes	No	Read in several ways, including the Nero Caesar proposal for Revelation 13:18 (see the Bible page).

Properties are arithmetic facts, calculated in code. The notes in the last column are traditional observations. Check any other number in the number properties tool.

How to read this table

Factors show what a number is built from. 13 and 613 are prime; 18, 26 and 86 are not.
Triangular and Fibonacci mark membership of well-known sequences.
A “Where it appears” note is a link a tradition has drawn. A shared total never proves two things are connected.

For method and caution see is gematria real? and gematria in Judaism.

Frequently asked questions

What does 13 mean in gematria?

In Hebrew gematria both echad (one) and ahavah (love) total 13. Readers have linked the two words through that match.

What is 18 in gematria?

It is the total of chai (life). Many Jews give gifts in multiples of 18.

Is 666 a prime number?

No. 666 = 2 × 3² × 37, and it is a triangular number.

Does a number have a fixed meaning in gematria?

No. Any meaning depends on the cipher, the words compared and the tradition reading them.

Written by Muhammad Hanif. Last updated 13 November 2026. The meanings listed are traditional readings, not proof of anything.