Is 100 a Prime Number?

No, 100 is not a prime number, it is a composite number.

100 Not a Prime Number Proof with Adraktas Formula

X = 100

a5 = [ X - 5 ] / 6
a5 = [ 100 - 5 ] / 6
a5 = 15.8333333333
a5 is not integer

a7 = [ X - 7 ] / 6
a7 = [ 100 - 7 ] / 6
a7 = 15.5
a7 is not integer

Both a5 and a7 is not integer.

100 is not a prime number

Why 100 is not a prime number?

Because 100 has divisors rather than 1 and itself. 100 can be divided by 2 and 2.

Prime factorization of 100 (list of divisors):

  • 2
  • 2
  • 5
  • 5

The next prime number of 100 is 101
The previous prime number of 100 is 97.


Related Prime Numbers

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Smallest 10 prime numbers bigger than 100

Related Non-Prime Numbers

Biggest 10 composite numbers smaller than 100

Smallest 10 composite numbers bigger than 100