Q: Is 43,005 a Prime Number?

A: No, 43,005 is not a prime number.

Why is 43,005 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 43005 can be evenly divided by 1 3 5 15 47 61 141 183 235 305 705 915 2,867 8,601 14,335 and 43,005, with no remainder.

Since 43,005 cannot be divided by just 1 and 43,005, it is not a prime number.

Number	43,003	43,004	43,006	43,007
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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