Q: Is 505,120 a Prime Number?
A: No, 505,120 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 505120 can be evenly divided by 1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 41 44 55 56 70 77 80 82 88 110 112 140 154 160 164 176 205 220 224 280 287 308 328 352 385 410 440 451 560 574 616 656 770 820 880 902 1,120 1,148 1,232 1,312 1,435 1,540 1,640 1,760 1,804 2,255 2,296 2,464 2,870 3,080 3,157 3,280 3,608 4,510 4,592 5,740 6,160 6,314 6,560 7,216 9,020 9,184 11,480 12,320 12,628 14,432 15,785 18,040 22,960 25,256 31,570 36,080 45,920 50,512 63,140 72,160 101,024 126,280 252,560 and 505,120, with no remainder.
Since 505,120 cannot be divided by just 1 and 505,120, it is not a prime number.