Q: Is 321,420 a Prime Number?

 A: No, 321,420 is not a prime number.

Why is 321,420 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 321420 can be evenly divided by 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 487 660 974 1,461 1,948 2,435 2,922 4,870 5,357 5,844 7,305 9,740 10,714 14,610 16,071 21,428 26,785 29,220 32,142 53,570 64,284 80,355 107,140 160,710 and 321,420, with no remainder.

Since 321,420 cannot be divided by just 1 and 321,420, it is not a prime number.


More Examples

Number 321,418321,419321,421321,422
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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