Q: Is 152,421 a Prime Number?

A: No, 152,421 is not a prime number.

Why is 152,421 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 152421 can be evenly divided by 1 3 23 47 69 141 1,081 2,209 3,243 6,627 50,807 and 152,421, with no remainder.

Since 152,421 cannot be divided by just 1 and 152,421, it is not a prime number.

Number	152,419	152,420	152,422	152,423
Prime?	yes	no	no	yes

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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