Q: Is 7,842,120 a Prime Number?
A: No, 7,842,120 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 7842120 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 13 15 20 22 24 26 30 33 39 40 44 52 55 60 65 66 78 88 104 110 120 130 132 143 156 165 195 220 260 264 286 312 330 390 429 440 457 520 572 660 715 780 858 914 1,144 1,320 1,371 1,430 1,560 1,716 1,828 2,145 2,285 2,742 2,860 3,432 3,656 4,290 4,570 5,027 5,484 5,720 5,941 6,855 8,580 9,140 10,054 10,968 11,882 13,710 15,081 17,160 17,823 18,280 20,108 23,764 25,135 27,420 29,705 30,162 35,646 40,216 47,528 50,270 54,840 59,410 60,324 65,351 71,292 75,405 89,115 100,540 118,820 120,648 130,702 142,584 150,810 178,230 196,053 201,080 237,640 261,404 301,620 326,755 356,460 392,106 522,808 603,240 653,510 712,920 784,212 980,265 1,307,020 1,568,424 1,960,530 2,614,040 3,921,060 and 7,842,120, with no remainder.
Since 7,842,120 cannot be divided by just 1 and 7,842,120, it is not a prime number.