Q: Is 723,520 a Prime Number?
A: No, 723,520 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 723520 can be evenly divided by 1 2 4 5 7 8 10 14 16 17 19 20 28 32 34 35 38 40 56 64 68 70 76 80 85 95 112 119 133 136 140 152 160 170 190 224 238 266 272 280 304 320 323 340 380 448 476 532 544 560 595 608 646 665 680 760 952 1,064 1,088 1,120 1,190 1,216 1,292 1,330 1,360 1,520 1,615 1,904 2,128 2,240 2,261 2,380 2,584 2,660 2,720 3,040 3,230 3,808 4,256 4,522 4,760 5,168 5,320 5,440 6,080 6,460 7,616 8,512 9,044 9,520 10,336 10,640 11,305 12,920 18,088 19,040 20,672 21,280 22,610 25,840 36,176 38,080 42,560 45,220 51,680 72,352 90,440 103,360 144,704 180,880 361,760 and 723,520, with no remainder.
Since 723,520 cannot be divided by just 1 and 723,520, it is not a prime number.