Q: Is 353,821 a Prime Number?

A: No, 353,821 is not a prime number.

Why is 353,821 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 353821 can be evenly divided by 1 13 17 221 1,601 20,813 27,217 and 353,821, with no remainder.

Since 353,821 cannot be divided by just 1 and 353,821, it is not a prime number.

Number	353,819	353,820	353,822	353,823
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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