The number 828,360 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 59 60 65 72 78 90 104 108 117 118 120 130 135 156 177 180 195 216 234 236 260 270 295 312 351 354 360 390 468 472 520 531 540 585 590 702 708 767 780 885 936 1,062 1,080 1,170 1,180 1,404 1,416 1,534 1,560 1,593 1,755 1,770 2,124 2,301 2,340 2,360 2,655 2,808 3,068 3,186 3,510 3,540 3,835 4,248 4,602 4,680 5,310 6,136 6,372 6,903 7,020 7,080 7,670 7,965 9,204 10,620 11,505 12,744 13,806 14,040 15,340 15,930 18,408 20,709 21,240 23,010 27,612 30,680 31,860 34,515 41,418 46,020 55,224 63,720 69,030 82,836 92,040 103,545 138,060 165,672 207,090 276,120 414,180 and 828,360, with no remainder.
Since 828,360 cannot be divided by just 1 and 828,360, it is a composite number.