Q: Is 685,960 a Prime Number?
A: No, 685,960 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 685960 can be evenly divided by 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 1,559 3,118 6,236 7,795 12,472 15,590 17,149 31,180 34,298 62,360 68,596 85,745 137,192 171,490 342,980 and 685,960, with no remainder.
Since 685,960 cannot be divided by just 1 and 685,960, it is not a prime number.