Q: Is 652,640 a Prime Number?
A: No, 652,640 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 652640 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 4,079 8,158 16,316 20,395 32,632 40,790 65,264 81,580 130,528 163,160 326,320 and 652,640, with no remainder.
Since 652,640 cannot be divided by just 1 and 652,640, it is not a prime number.