Q: Is 42,408,786 a Prime Number?

 A: No, 42,408,786 is not a prime number.

Why is 42,408,786 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 42408786 can be evenly divided by 1 2 3 6 7 14 21 42 61 122 183 366 427 854 1,281 2,562 16,553 33,106 49,659 99,318 115,871 231,742 347,613 695,226 1,009,733 2,019,466 3,029,199 6,058,398 7,068,131 14,136,262 21,204,393 and 42,408,786, with no remainder.

Since 42,408,786 cannot be divided by just 1 and 42,408,786, 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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