Q: Is 21,436,002 a Prime Number?

 A: No, 21,436,002 is not a prime number.

Why is 21,436,002 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 21436002 can be evenly divided by 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 243 378 486 567 1,134 1,701 3,402 6,301 12,602 18,903 37,806 44,107 56,709 88,214 113,418 132,321 170,127 264,642 340,254 396,963 510,381 793,926 1,020,762 1,190,889 1,531,143 2,381,778 3,062,286 3,572,667 7,145,334 10,718,001 and 21,436,002, with no remainder.

Since 21,436,002 cannot be divided by just 1 and 21,436,002, 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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