Q: Is 620,400 a Prime Number?
A: No, 620,400 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 620400 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 25 30 33 40 44 47 48 50 55 60 66 75 80 88 94 100 110 120 132 141 150 165 176 188 200 220 235 240 264 275 282 300 330 376 400 440 470 517 528 550 564 600 660 705 752 825 880 940 1,034 1,100 1,128 1,175 1,200 1,320 1,410 1,551 1,650 1,880 2,068 2,200 2,256 2,350 2,585 2,640 2,820 3,102 3,300 3,525 3,760 4,136 4,400 4,700 5,170 5,640 6,204 6,600 7,050 7,755 8,272 9,400 10,340 11,280 12,408 12,925 13,200 14,100 15,510 18,800 20,680 24,816 25,850 28,200 31,020 38,775 41,360 51,700 56,400 62,040 77,550 103,400 124,080 155,100 206,800 310,200 and 620,400, with no remainder.
Since 620,400 cannot be divided by just 1 and 620,400, it is not a prime number.