Q: Is 407,421 a Prime Number?

 A: No, 407,421 is not a prime number.

Why is 407,421 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 407421 can be evenly divided by 1 3 7 9 21 29 63 87 203 223 261 609 669 1,561 1,827 2,007 4,683 6,467 14,049 19,401 45,269 58,203 135,807 and 407,421, with no remainder.

Since 407,421 cannot be divided by just 1 and 407,421, it is not a prime number.


More Examples

Number 407,419407,420407,422407,423
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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