Q: Is 25,603 a Prime Number?

A: Yes, 25,603 is a prime number.

Why is 25,603 a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 25603 can be evenly divided by 1 and 25,603, with no remainder.

Since 25,603 can be divided by just 1 and 25,603, it is a prime number.

Number	25,601	25,602	25,604	25,605
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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