Q: Is 1,422,720 a Prime Number?
A: No, 1,422,720 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 1422720 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 13 15 16 18 19 20 24 26 30 32 36 38 39 40 45 48 52 57 60 64 65 72 76 78 80 90 95 96 104 114 117 120 128 130 144 152 156 160 171 180 190 192 195 208 228 234 240 247 260 285 288 304 312 320 342 360 380 384 390 416 456 468 480 494 520 570 576 585 608 624 640 684 720 741 760 780 832 855 912 936 960 988 1,040 1,140 1,152 1,170 1,216 1,235 1,248 1,368 1,440 1,482 1,520 1,560 1,664 1,710 1,824 1,872 1,920 1,976 2,080 2,223 2,280 2,340 2,432 2,470 2,496 2,736 2,880 2,964 3,040 3,120 3,420 3,648 3,705 3,744 3,952 4,160 4,446 4,560 4,680 4,940 4,992 5,472 5,760 5,928 6,080 6,240 6,840 7,296 7,410 7,488 7,904 8,320 8,892 9,120 9,360 9,880 10,944 11,115 11,856 12,160 12,480 13,680 14,820 14,976 15,808 17,784 18,240 18,720 19,760 21,888 22,230 23,712 24,960 27,360 29,640 31,616 35,568 36,480 37,440 39,520 44,460 47,424 54,720 59,280 71,136 74,880 79,040 88,920 94,848 109,440 118,560 142,272 158,080 177,840 237,120 284,544 355,680 474,240 711,360 and 1,422,720, with no remainder.
Since 1,422,720 cannot be divided by just 1 and 1,422,720, it is not a prime number.