Q: Is 20,125 a Prime Number?

A: No, 20,125 is not a prime number.

Why is 20,125 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 20125 can be evenly divided by 1 5 7 23 25 35 115 125 161 175 575 805 875 2,875 4,025 and 20,125, with no remainder.

Since 20,125 cannot be divided by just 1 and 20,125, it is not a prime number.

Number	20,123	20,124	20,126	20,127
Prime?	yes	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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