The number 760,320 can be evenly divided by 1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 88 90 96 99 108 110 120 128 132 135 144 160 165 176 180 192 198 216 220 240 256 264 270 288 297 320 330 352 360 384 396 432 440 480 495 512 528 540 576 594 640 660 704 720 768 792 864 880 960 990 1,056 1,080 1,152 1,188 1,280 1,320 1,408 1,440 1,485 1,536 1,584 1,728 1,760 1,920 1,980 2,112 2,160 2,304 2,376 2,560 2,640 2,816 2,880 2,970 3,168 3,456 3,520 3,840 3,960 4,224 4,320 4,608 4,752 5,280 5,632 5,760 5,940 6,336 6,912 7,040 7,680 7,920 8,448 8,640 9,504 10,560 11,520 11,880 12,672 13,824 14,080 15,840 16,896 17,280 19,008 21,120 23,040 23,760 25,344 28,160 31,680 34,560 38,016 42,240 47,520 50,688 63,360 69,120 76,032 84,480 95,040 126,720 152,064 190,080 253,440 380,160 and 760,320, with no remainder.
Since 760,320 cannot be divided by just 1 and 760,320, it is a composite number.