Q: Is 171,780,042 a Prime Number?

 A: No, 171,780,042 is not a prime number.

Why is 171,780,042 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 171780042 can be evenly divided by 1 2 3 6 7 14 21 42 4,090,001 8,180,002 12,270,003 24,540,006 28,630,007 57,260,014 85,890,021 and 171,780,042, with no remainder.

Since 171,780,042 cannot be divided by just 1 and 171,780,042, 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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