Q: Is 67,405,005 a Prime Number?

 A: No, 67,405,005 is not a prime number.

Why is 67,405,005 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 67405005 can be evenly divided by 1 3 5 9 15 31 45 93 155 211 229 279 465 633 687 1,055 1,145 1,395 1,899 2,061 3,165 3,435 6,541 7,099 9,495 10,305 19,623 21,297 32,705 35,495 48,319 58,869 63,891 98,115 106,485 144,957 241,595 294,345 319,455 434,871 724,785 1,497,889 2,174,355 4,493,667 7,489,445 13,481,001 22,468,335 and 67,405,005, with no remainder.

Since 67,405,005 cannot be divided by just 1 and 67,405,005, 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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