Q: Is 625,820 a Prime Number?
A: No, 625,820 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 625820 can be evenly divided by 1 2 4 5 10 13 20 26 29 52 58 65 83 116 130 145 166 260 290 332 377 415 580 754 830 1,079 1,508 1,660 1,885 2,158 2,407 3,770 4,316 4,814 5,395 7,540 9,628 10,790 12,035 21,580 24,070 31,291 48,140 62,582 125,164 156,455 312,910 and 625,820, with no remainder.
Since 625,820 cannot be divided by just 1 and 625,820, it is not a prime number.