Q: Is 215,501 a Prime Number?

A: No, 215,501 is not a prime number.

Why is 215,501 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 215501 can be evenly divided by 1 11 13 121 137 143 1,507 1,573 1,781 16,577 19,591 and 215,501, with no remainder.

Since 215,501 cannot be divided by just 1 and 215,501, it is not a prime number.

Number	215,499	215,500	215,502	215,503
Prime?	no	no	no	yes

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

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