Q: Is 999,998 a Prime Number?

A: No, 999,998 is not a prime number.

Why is 999,998 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 999998 can be evenly divided by 1 2 31 62 127 254 3,937 7,874 16,129 32,258 499,999 and 999,998, with no remainder.

Since 999,998 cannot be divided by just 1 and 999,998, it is not a prime number.

Number	999,996	999,997	999,999	1,000,000
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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