Q: Is 123,140 a Prime Number?

A: No, 123,140 is not a prime number.

Why is 123,140 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 123140 can be evenly divided by 1 2 4 5 10 20 47 94 131 188 235 262 470 524 655 940 1,310 2,620 6,157 12,314 24,628 30,785 61,570 and 123,140, with no remainder.

Since 123,140 cannot be divided by just 1 and 123,140, it is not a prime number.

Number	123,138	123,139	123,141	123,142
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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