251 (number)

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← 250 251 252 →
Cardinal two hundred fifty-one
Ordinal 251st
(two hundred fifty-first)
Factorization prime
Prime 54th
Greek numeral ΣΝΑ´
Roman numeral CCLI
Binary 111110112
Ternary 1000223
Quaternary 33234
Quinary 20015
Senary 10556
Octal 3738
Duodecimal 18B12
Hexadecimal FB16
Vigesimal CB20
Base 36 6Z36

251 (two hundred [and] fifty-one) is the natural number between 250 and 252. It is also a prime number.

In mathematics[edit]

251 is:

Every 5 × 5 matrix has exactly 251 square submatrices.[6]

References[edit]