Q: Is 1,142,720 a Prime Number?

 A: No, 1,142,720 is not a prime number.

Why is 1,142,720 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 1142720 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 3,571 7,142 14,284 17,855 28,568 35,710 57,136 71,420 114,272 142,840 228,544 285,680 571,360 and 1,142,720, with no remainder.

Since 1,142,720 cannot be divided by just 1 and 1,142,720, it is not a prime number.


More Examples

Number 1,142,7181,142,7191,142,7211,142,722
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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