Q: Is 123,520 a Prime Number?

 A: No, 123,520 is not a prime number.

Why is 123,520 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 123520 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 193 320 386 640 772 965 1,544 1,930 3,088 3,860 6,176 7,720 12,352 15,440 24,704 30,880 61,760 and 123,520, with no remainder.

Since 123,520 cannot be divided by just 1 and 123,520, it is not a prime number.


More Examples

Number 123,518123,519123,521123,522
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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