Q: Is 123,680 a Prime Number?

A: No, 123,680 is not a prime number.

Why is 123,680 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 123680 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 773 1,546 3,092 3,865 6,184 7,730 12,368 15,460 24,736 30,920 61,840 and 123,680, with no remainder.

Since 123,680 cannot be divided by just 1 and 123,680, it is not a prime number.

Number	123,678	123,679	123,681	123,682
Prime?	no	no	no	no

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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