Q: Is 10,143 a Prime Number?

A: No, 10,143 is not a prime number.

Why is 10,143 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 10143 can be evenly divided by 1 3 7 9 21 23 49 63 69 147 161 207 441 483 1,127 1,449 3,381 and 10,143, with no remainder.

Since 10,143 cannot be divided by just 1 and 10,143, it is not a prime number.

Number	10,141	10,142	10,144	10,145
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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