Q: Is 999,991 a Prime Number?

 A: No, 999,991 is not a prime number.

Why is 999,991 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 999991 can be evenly divided by 1 17 59 997 1,003 16,949 58,823 and 999,991, with no remainder.

Since 999,991 cannot be divided by just 1 and 999,991, it is not a prime number.


More Examples

Number 999,989999,990999,992999,993
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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