Q: Is 120,123,456 a Prime Number?

 A: No, 120,123,456 is not a prime number.

Why is 120,123,456 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 120123456 can be evenly divided by 1 2 3 4 6 8 12 16 24 32 48 64 96 192 625,643 1,251,286 1,876,929 2,502,572 3,753,858 5,005,144 7,507,716 10,010,288 15,015,432 20,020,576 30,030,864 40,041,152 60,061,728 and 120,123,456, with no remainder.

Since 120,123,456 cannot be divided by just 1 and 120,123,456, it is not a prime number.


More Examples

Number 120,123,454120,123,455120,123,457120,123,458
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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