Q: Is 642,025 a Prime Number?

 A: No, 642,025 is not a prime number.

Why is 642,025 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 642025 can be evenly divided by 1 5 25 61 305 421 1,525 2,105 10,525 25,681 128,405 and 642,025, with no remainder.

Since 642,025 cannot be divided by just 1 and 642,025, it is not a prime number.


More Examples

Number 642,023642,024642,026642,027
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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