Q: Is 666,998 a Prime Number?
A: No, 666,998 is 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 666998 can be evenly divided by 1 2 167 334 1,997 3,994 333,499 and 666,998, with no remainder.
Since 666,998 cannot be divided by just 1 and 666,998, it is not a prime number.