Q: Is 321,140 a Prime Number?

A: No, 321,140 is not a prime number.

Why is 321,140 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 321140 can be evenly divided by 1 2 4 5 10 20 16,057 32,114 64,228 80,285 160,570 and 321,140, with no remainder.

Since 321,140 cannot be divided by just 1 and 321,140, it is not a prime number.

Number	321,138	321,139	321,141	321,142
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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