Q: Is 625,005 a Composite Number?

 A: Yes, 625,005 is a composite number.

Why is 625,005 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 625,005 can be evenly divided by 1 3 5 9 15 17 19 43 45 51 57 85 95 129 153 171 215 255 285 323 387 645 731 765 817 855 969 1,615 1,935 2,193 2,451 2,907 3,655 4,085 4,845 6,579 7,353 10,965 12,255 13,889 14,535 32,895 36,765 41,667 69,445 125,001 208,335 and 625,005, with no remainder.

Since 625,005 cannot be divided by just 1 and 625,005, it is a composite number.


More Examples

Number 625,003625,004625,006625,007
Composite? yesyesyesno
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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