Q: Is 685,344 a Prime Number?
A: No, 685,344 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 685344 can be evenly divided by 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 59 66 88 96 118 121 132 176 177 236 242 264 352 354 363 472 484 528 649 708 726 944 968 1,056 1,298 1,416 1,452 1,888 1,936 1,947 2,596 2,832 2,904 3,872 3,894 5,192 5,664 5,808 7,139 7,788 10,384 11,616 14,278 15,576 20,768 21,417 28,556 31,152 42,834 57,112 62,304 85,668 114,224 171,336 228,448 342,672 and 685,344, with no remainder.
Since 685,344 cannot be divided by just 1 and 685,344, it is not a prime number.