Q: Is 660,009 a Prime Number?
A: No, 660,009 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 660009 can be evenly divided by 1 3 7 21 53 159 371 593 1,113 1,779 4,151 12,453 31,429 94,287 220,003 and 660,009, with no remainder.
Since 660,009 cannot be divided by just 1 and 660,009, it is not a prime number.