Q: Is 625,280 a Prime Number?
A: No, 625,280 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 625280 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 977 1,954 3,908 4,885 7,816 9,770 15,632 19,540 31,264 39,080 62,528 78,160 125,056 156,320 312,640 and 625,280, with no remainder.
Since 625,280 cannot be divided by just 1 and 625,280, it is not a prime number.