The number 2,976,768 can be evenly divided by 1 2 3 4 6 8 9 12 16 17 18 19 24 32 34 36 38 48 51 57 64 68 72 76 96 102 114 128 136 144 152 153 171 192 204 228 256 272 288 304 306 323 342 384 408 456 512 544 576 608 612 646 684 768 816 912 969 1,024 1,088 1,152 1,216 1,224 1,292 1,368 1,536 1,632 1,824 1,938 2,176 2,304 2,432 2,448 2,584 2,736 2,907 3,072 3,264 3,648 3,876 4,352 4,608 4,864 4,896 5,168 5,472 5,814 6,528 7,296 7,752 8,704 9,216 9,728 9,792 10,336 10,944 11,628 13,056 14,592 15,504 17,408 19,456 19,584 20,672 21,888 23,256 26,112 29,184 31,008 39,168 41,344 43,776 46,512 52,224 58,368 62,016 78,336 82,688 87,552 93,024 124,032 156,672 165,376 175,104 186,048 248,064 330,752 372,096 496,128 744,192 992,256 1,488,384 and 2,976,768, with no remainder.
Since 2,976,768 cannot be divided by just 1 and 2,976,768, it is a composite number.