Q: Is 11,005 a Prime Number?

A: No, 11,005 is not a prime number.

Why is 11,005 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 11005 can be evenly divided by 1 5 31 71 155 355 2,201 and 11,005, with no remainder.

Since 11,005 cannot be divided by just 1 and 11,005, it is not a prime number.

Number	11,003	11,004	11,006	11,007
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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