Q: Is 42,123,123 a Prime Number?

 A: No, 42,123,123 is not a prime number.

Why is 42,123,123 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 42123123 can be evenly divided by 1 3 7 9 21 61 63 97 113 183 291 339 427 549 679 791 873 1,017 1,281 2,037 2,373 3,843 5,917 6,111 6,893 7,119 10,961 17,751 20,679 32,883 41,419 48,251 53,253 62,037 76,727 98,649 124,257 144,753 230,181 372,771 434,259 668,621 690,543 2,005,863 4,680,347 6,017,589 14,041,041 and 42,123,123, with no remainder.

Since 42,123,123 cannot be divided by just 1 and 42,123,123, 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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