Q: Is 1,720,740 a Prime Number?
A: No, 1,720,740 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 1720740 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 17 20 21 28 30 34 35 42 51 60 68 70 84 85 102 105 119 140 170 204 210 238 241 255 340 357 420 476 482 510 595 714 723 964 1,020 1,190 1,205 1,428 1,446 1,687 1,785 2,380 2,410 2,892 3,374 3,570 3,615 4,097 4,820 5,061 6,748 7,140 7,230 8,194 8,435 10,122 12,291 14,460 16,388 16,870 20,244 20,485 24,582 25,305 28,679 33,740 40,970 49,164 50,610 57,358 61,455 81,940 86,037 101,220 114,716 122,910 143,395 172,074 245,820 286,790 344,148 430,185 573,580 860,370 and 1,720,740, with no remainder.
Since 1,720,740 cannot be divided by just 1 and 1,720,740, it is not a prime number.