Q: Is 42,138,579 a Prime Number?

 A: No, 42,138,579 is not a prime number.

Why is 42,138,579 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 42138579 can be evenly divided by 1 3 7 21 31 49 93 147 217 343 651 1,029 1,321 1,519 3,963 4,557 9,247 10,633 27,741 31,899 40,951 64,729 122,853 194,187 286,657 453,103 859,971 1,359,309 2,006,599 6,019,797 14,046,193 and 42,138,579, with no remainder.

Since 42,138,579 cannot be divided by just 1 and 42,138,579, it is not a prime number.


More Examples

Number 42,138,57742,138,57842,138,58042,138,581
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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