Q: Is 123,435 a Prime Number?

A: No, 123,435 is not a prime number.

Why is 123,435 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 123435 can be evenly divided by 1 3 5 9 13 15 39 45 65 117 195 211 585 633 1,055 1,899 2,743 3,165 8,229 9,495 13,715 24,687 41,145 and 123,435, with no remainder.

Since 123,435 cannot be divided by just 1 and 123,435, it is not a prime number.

Number	123,433	123,434	123,436	123,437
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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