Q: Is 138,285,855 a Prime Number?

 A: No, 138,285,855 is not a prime number.

Why is 138,285,855 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 138285855 can be evenly divided by 1 3 5 9 15 45 127 381 635 1,143 1,905 5,715 24,197 72,591 120,985 217,773 362,955 1,088,865 3,073,019 9,219,057 15,365,095 27,657,171 46,095,285 and 138,285,855, with no remainder.

Since 138,285,855 cannot be divided by just 1 and 138,285,855, 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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