Q: Is 660,003 a Prime Number?
A: No, 660,003 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 660003 can be evenly divided by 1 3 19 57 11,579 34,737 220,001 and 660,003, with no remainder.
Since 660,003 cannot be divided by just 1 and 660,003, it is not a prime number.