Q: Is 42,220,005 a Prime Number?

 A: No, 42,220,005 is not a prime number.

Why is 42,220,005 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 42220005 can be evenly divided by 1 3 5 15 383 1,149 1,915 5,745 7,349 22,047 36,745 110,235 2,814,667 8,444,001 14,073,335 and 42,220,005, with no remainder.

Since 42,220,005 cannot be divided by just 1 and 42,220,005, 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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