Q: Is 685,124 a Prime Number?
A: No, 685,124 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 685124 can be evenly divided by 1 2 4 11 22 23 44 46 92 253 506 677 1,012 1,354 2,708 7,447 14,894 15,571 29,788 31,142 62,284 171,281 342,562 and 685,124, with no remainder.
Since 685,124 cannot be divided by just 1 and 685,124, it is not a prime number.