Q: Is 1,275,120 a Prime Number?
A: No, 1,275,120 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 1275120 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 20 21 22 23 24 28 30 33 35 36 40 42 44 45 46 48 55 56 60 63 66 69 70 72 77 80 84 88 90 92 99 105 110 112 115 120 126 132 138 140 144 154 161 165 168 176 180 184 198 207 210 220 230 231 240 252 253 264 276 280 308 315 322 330 336 345 360 368 385 396 414 420 440 460 462 483 495 504 506 528 552 560 616 630 644 660 690 693 720 759 770 792 805 828 840 880 920 924 966 990 1,008 1,012 1,035 1,104 1,155 1,232 1,260 1,265 1,288 1,320 1,380 1,386 1,449 1,518 1,540 1,584 1,610 1,656 1,680 1,771 1,840 1,848 1,932 1,980 2,024 2,070 2,277 2,310 2,415 2,520 2,530 2,576 2,640 2,760 2,772 2,898 3,036 3,080 3,220 3,312 3,465 3,542 3,696 3,795 3,864 3,960 4,048 4,140 4,554 4,620 4,830 5,040 5,060 5,313 5,520 5,544 5,796 6,072 6,160 6,440 6,930 7,084 7,245 7,590 7,728 7,920 8,280 8,855 9,108 9,240 9,660 10,120 10,626 11,088 11,385 11,592 12,144 12,880 13,860 14,168 14,490 15,180 15,939 16,560 17,710 18,216 18,480 19,320 20,240 21,252 22,770 23,184 26,565 27,720 28,336 28,980 30,360 31,878 35,420 36,432 38,640 42,504 45,540 53,130 55,440 57,960 60,720 63,756 70,840 79,695 85,008 91,080 106,260 115,920 127,512 141,680 159,390 182,160 212,520 255,024 318,780 425,040 637,560 and 1,275,120, with no remainder.
Since 1,275,120 cannot be divided by just 1 and 1,275,120, it is not a prime number.