Q: Is 155,555,009 a Prime Number?

 A: No, 155,555,009 is not a prime number.

Why is 155,555,009 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 155555009 can be evenly divided by 1 113 977 1,409 110,401 159,217 1,376,593 and 155,555,009, with no remainder.

Since 155,555,009 cannot be divided by just 1 and 155,555,009, it is not a prime number.


More Examples

Number 155,555,007155,555,008155,555,010155,555,011
Prime? nononoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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