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#REDIRECT Numeral systems

The system of Hebrew numerals is a quasi-decimal alphabetic numeral system using the letters of the Hebrew alphabet.

In this system, there was no notation for zero, and the numeric values for individual letters are added together. Each unit (1, 2, ..., 9) is assigned a separate letter, each tens (10, 20, ..., 90) a separate letter, and each hundreds (100, 200, ..., 900) a separate letter. Gematria (Jewish numerology) uses these transformations extensively.


Hebrew Decimal Glyph
Aleph 1 א
Bet 2 ב
Gimmel 3 ג
Dalet 4 ד
Hey 5 ה
Vav 6 ו
Zayin 7 ז
Het 8 ח
Tet 9 ט
Yod 10 י
Kaf 20 כ
Lamed 3030 thirty is the natural number following 29 and preceding 31. Cardinalthirty Ordinalthirtieth Numeral system Factorization Divisors2, 3, 5, 6, 10, 15 Roman numeralXXX Binary11110 Hexadecimal1E In mathematics It is a primorial as well as the sum of the sq ל
Mem 40Integers Composite numbers 40 is the natural number following 39 and preceding 41. In English, forty is the only number whose constituent letters appear in alphabetical order. Cardinal forty Ordinal40th (fortieth) Numeral system Factorization Divisors 2, מ
Nun 50Integers Composite numbers 50 ("fifty") is the number following 49 and preceding 51. Cardinal fifty Ordinal50th (fiftieth) Factorization Roman numeralL Binary110010 Hexadecimal32 Mathematics Fifty is the smallest number that can be written as the sum of t נ
Samekh 60Integers Composite numbers 60 is the natural number following 59 and preceding 61. Cardinal sixty Ordinalsixtieth Numeral system sexagesimal Factorization Roman numeralLX Binary111100 Hexadecimal3C Mathematics Sixty is a composite number with divisors 1, ס
Ayin 7070 seventy is the natural number following 69 and preceding 71. Cardinal seventy Ordinal70th (seventieth) Numeral system Factorization Divisors 2, 5, 7, 10, 14, 35 Roman numeralLXX Binary1000110 Hexadecimal46 Mathematics 70 is a Pell number and a Harshad ע
Phei 8080 is the natural number following 79 and preceding 81. It is a Harshad number. Greek numeral: π´ See wiktionary:eighty to see 80 in other languages. Eighty is also: the atomic number of mercury (Hg) the number of units in a four score the age at which פ
Tsadei 90Integers Composite numbers 90 is the natural number preceded by 89 and followed by 91. Cardinal ninety Ordinal90th (ninetieth) Factorization Divisors 2, 3, 5, 6, 9, 15, 18, 30, 45 Roman numeralXC Binary1011010 Hexadecimal5A In mathematics Ninety is the su צ
Kuf 100Integers Composite numbers 100 (the Roman numeral is C for centum is the natural number following 99 and preceding 101. Prefixes for 100 include hecta- ( Greek) and cent- ( Latin). Cardinal one hundred Ordinal100th (one hundredth) Factorization Divisors 2 ק
Resh 200 ר
Shin 300 ש
Tav 400 ת
Kaf Sofeet 500 ך
Mem Sofeet 600 ם
NuN Sofeet 700 ן
Phei Sofeet 800 ף
Tsadei Sofeet 900 ץ


The alphabetic system operates on the additive principle in which the numeric values of the letters are added together to form the total. For example, 177 is represented as קעז which corresponds to 100 + 70 + 7 = 177.

The numbers 15 and 16 are represented as טו ‎(9+6) and טז ‎(9+7) respectively, instead of יה and יו. This is done in order to refrain from using the sacred combinations that are a part of the name of God in Judaism.

This system requires 27 letters, so the 22-letter Hebrew alphabet is sometimes extended to 27 by using 5 sofeet (final) forms of the Hebrew letters. Alternatively (and more often), the last letter, tav (which has the value 400) is used in combination with itself and/or other letters from qof (100) onwards, to generate numbers from 500 and above.

A gershayim mark (similar to a double quote mark) is often inserted before the last (leftmost) letter to indicate that the sequence of letters represents a number rather than a word. When only one letter is used (as for the numbers 1-9, 10, 20, etc.), a geresh mark (similar to a single quote mark) follows the letter.

Thousands are counted separately, and the thousand count precedes the rest of the number. When specifying years of the Hebrew calendar, the thousands are often simply omitted if the year is in the present millennium.

This system is nowadays used mainly for specifying the days and years of the Hebrew calendar, and in numerology ( gematria).





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