Q: Is 42,120,195 a Prime Number?

 A: No, 42,120,195 is not a prime number.

Why is 42,120,195 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 42120195 can be evenly divided by 1 3 5 13 15 39 61 65 183 195 305 793 915 2,379 3,541 3,965 10,623 11,895 17,705 46,033 53,115 138,099 216,001 230,165 648,003 690,495 1,080,005 2,808,013 3,240,015 8,424,039 14,040,065 and 42,120,195, with no remainder.

Since 42,120,195 cannot be divided by just 1 and 42,120,195, it is not a prime number.


More Examples

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

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