The number 826,800 can be evenly divided by 1 2 3 4 5 6 8 10 12 13 15 16 20 24 25 26 30 39 40 48 50 52 53 60 65 75 78 80 100 104 106 120 130 150 156 159 195 200 208 212 240 260 265 300 312 318 325 390 400 424 520 530 600 624 636 650 689 780 795 848 975 1,040 1,060 1,200 1,272 1,300 1,325 1,378 1,560 1,590 1,950 2,067 2,120 2,544 2,600 2,650 2,756 3,120 3,180 3,445 3,900 3,975 4,134 4,240 5,200 5,300 5,512 6,360 6,890 7,800 7,950 8,268 10,335 10,600 11,024 12,720 13,780 15,600 15,900 16,536 17,225 20,670 21,200 27,560 31,800 33,072 34,450 41,340 51,675 55,120 63,600 68,900 82,680 103,350 137,800 165,360 206,700 275,600 413,400 and 826,800, with no remainder.
Since 826,800 cannot be divided by just 1 and 826,800, it is a composite number.