123 (number)

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Cardinal 123
one hundred [and] twenty-three
Ordinal 123rd
one hundred [and] twenty-third
Factorization <math> 3 \cdot 41 </math>
Divisors 3, 41
Roman numeral CXXIII
Prefixes hecatontakaiicosikaitria- (Greek)
Binary 1111011
Octal 173
Duodecimal A3
Hexadecimal 7B

123 is the natural number following 122 and preceding 124.

In mathematics

123 is a Lucas number and a Smarandche consecutive number.

It is the first nontrivial 42-gonal number.

In other fields

One hundred [and] twenty-three is also:


fr:123 (nombre) ko:123 ja:123 ru:123 (число) sl:123 (število) zh:123