Q: Is 72,143 a Prime Number?

A: No, 72,143 is not a prime number.

Why is 72,143 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 72143 can be evenly divided by 1 19 3,797 and 72,143, with no remainder.

Since 72,143 cannot be divided by just 1 and 72,143, it is not a prime number.

Number	72,141	72,142	72,144	72,145
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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