The number 6,937,280 can be evenly divided by 1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 64 70 76 80 95 112 133 140 152 160 163 190 224 266 280 304 320 326 380 448 532 560 608 652 665 760 815 1,064 1,120 1,141 1,216 1,304 1,330 1,520 1,630 2,128 2,240 2,282 2,608 2,660 3,040 3,097 3,260 4,256 4,564 5,216 5,320 5,705 6,080 6,194 6,520 8,512 9,128 10,432 10,640 11,410 12,388 13,040 15,485 18,256 21,280 21,679 22,820 24,776 26,080 30,970 36,512 42,560 43,358 45,640 49,552 52,160 61,940 73,024 86,716 91,280 99,104 108,395 123,880 173,432 182,560 198,208 216,790 247,760 346,864 365,120 433,580 495,520 693,728 867,160 991,040 1,387,456 1,734,320 3,468,640 and 6,937,280, with no remainder.
Since 6,937,280 cannot be divided by just 1 and 6,937,280, it is a composite number.