Q: Is 72,100,120 a Prime Number?

 A: No, 72,100,120 is not a prime number.

Why is 72,100,120 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 72100120 can be evenly divided by 1 2 4 5 8 10 20 40 1,802,503 3,605,006 7,210,012 9,012,515 14,420,024 18,025,030 36,050,060 and 72,100,120, with no remainder.

Since 72,100,120 cannot be divided by just 1 and 72,100,120, it is not a prime number.


More Examples

Number 72,100,11872,100,11972,100,12172,100,122
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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