Q: Is 121,123,311 a Prime Number?

 A: No, 121,123,311 is not a prime number.

Why is 121,123,311 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 121123311 can be evenly divided by 1 3 37 83 111 249 3,071 9,213 13,147 39,441 486,439 1,091,201 1,459,317 3,273,603 40,374,437 and 121,123,311, with no remainder.

Since 121,123,311 cannot be divided by just 1 and 121,123,311, it is not a prime number.


More Examples

Number 121,123,309121,123,310121,123,312121,123,313
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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