Q: Is 672,420 a Prime Number?

 A: No, 672,420 is not a prime number.

Why is 672,420 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 672420 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 1,601 3,202 4,803 6,404 8,005 9,606 11,207 16,010 19,212 22,414 24,015 32,020 33,621 44,828 48,030 56,035 67,242 96,060 112,070 134,484 168,105 224,140 336,210 and 672,420, with no remainder.

Since 672,420 cannot be divided by just 1 and 672,420, it is not a prime number.


More Examples

Number 672,418672,419672,421672,422
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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