Q: Is 105,500 a Prime Number?

A: No, 105,500 is not a prime number.

Why is 105,500 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 105500 can be evenly divided by 1 2 4 5 10 20 25 50 100 125 211 250 422 500 844 1,055 2,110 4,220 5,275 10,550 21,100 26,375 52,750 and 105,500, with no remainder.

Since 105,500 cannot be divided by just 1 and 105,500, it is not a prime number.

Number	105,498	105,499	105,501	105,502
Prime?	no	yes	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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