Q: Is 42,138,570 a Prime Number?

 A: No, 42,138,570 is not a prime number.

Why is 42,138,570 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 42138570 can be evenly divided by 1 2 3 5 6 10 15 30 41 82 123 205 246 410 615 1,230 34,259 68,518 102,777 171,295 205,554 342,590 513,885 1,027,770 1,404,619 2,809,238 4,213,857 7,023,095 8,427,714 14,046,190 21,069,285 and 42,138,570, with no remainder.

Since 42,138,570 cannot be divided by just 1 and 42,138,570, 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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