Q: Is 42,008,445 a Prime Number?

 A: No, 42,008,445 is not a prime number.

Why is 42,008,445 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 42008445 can be evenly divided by 1 3 5 9 15 17 45 51 85 89 153 255 267 445 617 765 801 1,335 1,513 1,851 3,085 4,005 4,539 5,553 7,565 9,255 10,489 13,617 22,695 27,765 31,467 52,445 54,913 68,085 94,401 157,335 164,739 274,565 472,005 494,217 823,695 933,521 2,471,085 2,800,563 4,667,605 8,401,689 14,002,815 and 42,008,445, with no remainder.

Since 42,008,445 cannot be divided by just 1 and 42,008,445, 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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