Is 22 a Prime Number?

No, 22 is not a prime number, it is a composite number.

22 Not a Prime Number Proof with Adraktas Formula

X = 22

a5 = [ X - 5 ] / 6
a5 = [ 22 - 5 ] / 6
a5 = 2.83333333333
a5 is not integer

a7 = [ X - 7 ] / 6
a7 = [ 22 - 7 ] / 6
a7 = 2.5
a7 is not integer

Both a5 and a7 is not integer.

22 is not a prime number

Why 22 is not a prime number?

Because 22 has divisors rather than 1 and itself. 22 can be divided by 2 and 11.

Prime factorization of 22 (list of divisors):

  • 2
  • 11

The next prime number of 22 is 23
The previous prime number of 22 is 19.


Related Prime Numbers

Biggest 10 prime numbers smaller than 22

Smallest 10 prime numbers bigger than 22

Related Non-Prime Numbers

Biggest 10 composite numbers smaller than 22

Smallest 10 composite numbers bigger than 22