Q: Is 55,605 a Prime Number?

A: No, 55,605 is not a prime number.

Why is 55,605 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 55605 can be evenly divided by 1 3 5 11 15 33 55 165 337 1,011 1,685 3,707 5,055 11,121 18,535 and 55,605, with no remainder.

Since 55,605 cannot be divided by just 1 and 55,605, it is not a prime number.

Number	55,603	55,604	55,606	55,607
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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