Q: Is 551,040 a Prime Number?
A: No, 551,040 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 551040 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 41 42 48 56 60 64 70 80 82 84 96 105 112 120 123 128 140 160 164 168 192 205 210 224 240 246 280 287 320 328 336 384 410 420 448 480 492 560 574 615 640 656 672 820 840 861 896 960 984 1,120 1,148 1,230 1,312 1,344 1,435 1,640 1,680 1,722 1,920 1,968 2,240 2,296 2,460 2,624 2,688 2,870 3,280 3,360 3,444 3,936 4,305 4,480 4,592 4,920 5,248 5,740 6,560 6,720 6,888 7,872 8,610 9,184 9,840 11,480 13,120 13,440 13,776 15,744 17,220 18,368 19,680 22,960 26,240 27,552 34,440 36,736 39,360 45,920 55,104 68,880 78,720 91,840 110,208 137,760 183,680 275,520 and 551,040, with no remainder.
Since 551,040 cannot be divided by just 1 and 551,040, it is not a prime number.