Q: Is 31,457 a Prime Number?

A: No, 31,457 is not a prime number.

Why is 31,457 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 31457 can be evenly divided by 1 83 379 and 31,457, with no remainder.

Since 31,457 cannot be divided by just 1 and 31,457, it is not a prime number.

Number	31,455	31,456	31,458	31,459
Prime?	no	no	no	no

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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