Q: Is 124,640 a Prime Number?
A: No, 124,640 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 124640 can be evenly divided by 1 2 4 5 8 10 16 19 20 32 38 40 41 76 80 82 95 152 160 164 190 205 304 328 380 410 608 656 760 779 820 1,312 1,520 1,558 1,640 3,040 3,116 3,280 3,895 6,232 6,560 7,790 12,464 15,580 24,928 31,160 62,320 and 124,640, with no remainder.
Since 124,640 cannot be divided by just 1 and 124,640, it is not a prime number.