The number 2,096,640 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 28 30 32 35 36 39 40 42 45 48 52 56 60 63 64 65 70 72 78 80 84 90 91 96 104 105 112 117 120 126 128 130 140 144 156 160 168 180 182 192 195 208 210 224 234 240 252 256 260 273 280 288 312 315 320 336 360 364 384 390 416 420 448 455 468 480 504 512 520 546 560 576 585 624 630 640 672 720 728 768 780 819 832 840 896 910 936 960 1,008 1,040 1,092 1,120 1,152 1,170 1,248 1,260 1,280 1,344 1,365 1,440 1,456 1,536 1,560 1,638 1,664 1,680 1,792 1,820 1,872 1,920 2,016 2,080 2,184 2,240 2,304 2,340 2,496 2,520 2,560 2,688 2,730 2,880 2,912 3,120 3,276 3,328 3,360 3,584 3,640 3,744 3,840 4,032 4,095 4,160 4,368 4,480 4,608 4,680 4,992 5,040 5,376 5,460 5,760 5,824 6,240 6,552 6,656 6,720 7,280 7,488 7,680 8,064 8,190 8,320 8,736 8,960 9,360 9,984 10,080 10,752 10,920 11,520 11,648 12,480 13,104 13,440 14,560 14,976 16,128 16,380 16,640 17,472 17,920 18,720 19,968 20,160 21,840 23,040 23,296 24,960 26,208 26,880 29,120 29,952 32,256 32,760 33,280 34,944 37,440 40,320 43,680 46,592 49,920 52,416 53,760 58,240 59,904 65,520 69,888 74,880 80,640 87,360 99,840 104,832 116,480 131,040 139,776 149,760 161,280 174,720 209,664 232,960 262,080 299,520 349,440 419,328 524,160 698,880 1,048,320 and 2,096,640, with no remainder.
Since 2,096,640 cannot be divided by just 1 and 2,096,640, it is a composite number.