The number 7,706,880 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 223 240 256 270 288 320 360 384 432 446 480 540 576 640 669 720 768 864 892 960 1,080 1,115 1,152 1,280 1,338 1,440 1,728 1,784 1,920 2,007 2,160 2,230 2,304 2,676 2,880 3,345 3,456 3,568 3,840 4,014 4,320 4,460 5,352 5,760 6,021 6,690 6,912 7,136 8,028 8,640 8,920 10,035 10,704 11,520 12,042 13,380 14,272 16,056 17,280 17,840 20,070 21,408 24,084 26,760 28,544 30,105 32,112 34,560 35,680 40,140 42,816 48,168 53,520 57,088 60,210 64,224 71,360 80,280 85,632 96,336 107,040 120,420 128,448 142,720 160,560 171,264 192,672 214,080 240,840 256,896 285,440 321,120 385,344 428,160 481,680 513,792 642,240 770,688 856,320 963,360 1,284,480 1,541,376 1,926,720 2,568,960 3,853,440 and 7,706,880, with no remainder.
Since 7,706,880 cannot be divided by just 1 and 7,706,880, it is a composite number.