Q: Is 1,375,920 a Prime Number?
A: No, 1,375,920 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 1375920 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 27 28 30 35 36 39 40 42 45 48 49 52 54 56 60 63 65 70 72 78 80 84 90 91 98 104 105 108 112 117 120 126 130 135 140 144 147 156 168 180 182 189 195 196 208 210 216 234 240 245 252 260 270 273 280 294 312 315 336 351 360 364 378 390 392 420 432 441 455 468 490 504 520 540 546 560 585 588 624 630 637 702 720 728 735 756 780 784 819 840 882 910 936 945 980 1,008 1,040 1,080 1,092 1,170 1,176 1,260 1,274 1,323 1,365 1,404 1,456 1,470 1,512 1,560 1,638 1,680 1,755 1,764 1,820 1,872 1,890 1,911 1,960 2,160 2,184 2,205 2,340 2,352 2,457 2,520 2,548 2,646 2,730 2,808 2,940 3,024 3,120 3,185 3,276 3,510 3,528 3,640 3,780 3,822 3,920 4,095 4,368 4,410 4,680 4,914 5,040 5,096 5,292 5,460 5,616 5,733 5,880 6,370 6,552 6,615 7,020 7,056 7,280 7,560 7,644 8,190 8,820 9,360 9,555 9,828 10,192 10,584 10,920 11,466 11,760 12,285 12,740 13,104 13,230 14,040 15,120 15,288 16,380 17,199 17,640 19,110 19,656 21,168 21,840 22,932 24,570 25,480 26,460 28,080 28,665 30,576 32,760 34,398 35,280 38,220 39,312 45,864 49,140 50,960 52,920 57,330 65,520 68,796 76,440 85,995 91,728 98,280 105,840 114,660 137,592 152,880 171,990 196,560 229,320 275,184 343,980 458,640 687,960 and 1,375,920, with no remainder.
Since 1,375,920 cannot be divided by just 1 and 1,375,920, it is not a prime number.