Q: Is 7,420,005 a Prime Number?

 A: No, 7,420,005 is not a prime number.

Why is 7,420,005 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 7420005 can be evenly divided by 1 3 5 9 15 27 31 45 81 93 135 155 197 243 279 405 465 591 837 985 1,215 1,395 1,773 2,511 2,955 4,185 5,319 6,107 7,533 8,865 12,555 15,957 18,321 26,595 30,535 37,665 47,871 54,963 79,785 91,605 164,889 239,355 274,815 494,667 824,445 1,484,001 2,473,335 and 7,420,005, with no remainder.

Since 7,420,005 cannot be divided by just 1 and 7,420,005, it is not a prime number.


More Examples

Number 7,420,0037,420,0047,420,0067,420,007
Prime? yesnonono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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