Q: Is 420,242,139 a Prime Number?

 A: No, 420,242,139 is not a prime number.

Why is 420,242,139 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 420242139 can be evenly divided by 1 3 9 43 129 271 387 813 2,439 4,007 11,653 12,021 34,959 36,063 104,877 172,301 516,903 1,085,897 1,550,709 3,257,691 9,773,073 46,693,571 140,080,713 and 420,242,139, with no remainder.

Since 420,242,139 cannot be divided by just 1 and 420,242,139, it is not a prime number.


More Examples

Number 420,242,137420,242,138420,242,140420,242,141
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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