Q: Is 123,138 a Prime Number?

A: No, 123,138 is not a prime number.

Why is 123,138 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 123138 can be evenly divided by 1 2 3 6 9 18 6,841 13,682 20,523 41,046 61,569 and 123,138, with no remainder.

Since 123,138 cannot be divided by just 1 and 123,138, it is not a prime number.

Number	123,136	123,137	123,139	123,140
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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