Q: Is 85,220 a Prime Number?

A: No, 85,220 is not a prime number.

Why is 85,220 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 85220 can be evenly divided by 1 2 4 5 10 20 4,261 8,522 17,044 21,305 42,610 and 85,220, with no remainder.

Since 85,220 cannot be divided by just 1 and 85,220, it is not a prime number.

Number	85,218	85,219	85,221	85,222
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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