Q: Is 723,240 a Prime Number?
A: No, 723,240 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 723240 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 41 42 45 49 56 60 63 70 72 82 84 90 98 105 120 123 126 140 147 164 168 180 196 205 210 245 246 252 280 287 294 315 328 360 369 392 410 420 441 490 492 504 574 588 615 630 735 738 820 840 861 882 980 984 1,148 1,176 1,230 1,260 1,435 1,470 1,476 1,640 1,722 1,764 1,845 1,960 2,009 2,205 2,296 2,460 2,520 2,583 2,870 2,940 2,952 3,444 3,528 3,690 4,018 4,305 4,410 4,920 5,166 5,740 5,880 6,027 6,888 7,380 8,036 8,610 8,820 10,045 10,332 11,480 12,054 12,915 14,760 16,072 17,220 17,640 18,081 20,090 20,664 24,108 25,830 30,135 34,440 36,162 40,180 48,216 51,660 60,270 72,324 80,360 90,405 103,320 120,540 144,648 180,810 241,080 361,620 and 723,240, with no remainder.
Since 723,240 cannot be divided by just 1 and 723,240, it is not a prime number.