Q: Is 991,001 a Prime Number?

 A: No, 991,001 is not a prime number.

Why is 991,001 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 991001 can be evenly divided by 1 11 23 253 3,917 43,087 90,091 and 991,001, with no remainder.

Since 991,001 cannot be divided by just 1 and 991,001, it is not a prime number.


More Examples

Number 990,999991,000991,002991,003
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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