Q: Is 1,005,421 a Prime Number?

 A: No, 1,005,421 is not a prime number.

Why is 1,005,421 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 1005421 can be evenly divided by 1 479 2,099 and 1,005,421, with no remainder.

Since 1,005,421 cannot be divided by just 1 and 1,005,421, it is not a prime number.


More Examples

Number 1,005,4191,005,4201,005,4221,005,423
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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