Q: Is 123,172 a Prime Number?

A: No, 123,172 is not a prime number.

Why is 123,172 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 123172 can be evenly divided by 1 2 4 7 14 28 53 83 106 166 212 332 371 581 742 1,162 1,484 2,324 4,399 8,798 17,596 30,793 61,586 and 123,172, with no remainder.

Since 123,172 cannot be divided by just 1 and 123,172, it is not a prime number.

Number	123,170	123,171	123,173	123,174
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