Q: Is 31,609 a Prime Number?

A: No, 31,609 is not a prime number.

Why is 31,609 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 31609 can be evenly divided by 1 73 433 and 31,609, with no remainder.

Since 31,609 cannot be divided by just 1 and 31,609, it is not a prime number.

Number	31,607	31,608	31,610	31,611
Prime?	yes	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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