Q: Is 25,143 a Prime Number?

A: No, 25,143 is not a prime number.

Why is 25,143 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 25143 can be evenly divided by 1 3 17 29 51 87 289 493 867 1,479 8,381 and 25,143, with no remainder.

Since 25,143 cannot be divided by just 1 and 25,143, it is not a prime number.

Number	25,141	25,142	25,144	25,145
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).

General Questions

Factoring Questions

Calculation Questions

Miscellaneous Questions