The number 9,318,600 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 31 36 40 45 50 60 62 72 75 90 93 100 120 124 150 155 167 180 186 200 225 248 279 300 310 334 360 372 450 465 501 558 600 620 668 744 775 835 900 930 1,002 1,116 1,240 1,336 1,395 1,503 1,550 1,670 1,800 1,860 2,004 2,232 2,325 2,505 2,790 3,006 3,100 3,340 3,720 4,008 4,175 4,650 5,010 5,177 5,580 6,012 6,200 6,680 6,975 7,515 8,350 9,300 10,020 10,354 11,160 12,024 12,525 13,950 15,030 15,531 16,700 18,600 20,040 20,708 25,050 25,885 27,900 30,060 31,062 33,400 37,575 41,416 46,593 50,100 51,770 55,800 60,120 62,124 75,150 77,655 93,186 100,200 103,540 124,248 129,425 150,300 155,310 186,372 207,080 232,965 258,850 300,600 310,620 372,744 388,275 465,930 517,700 621,240 776,550 931,860 1,035,400 1,164,825 1,553,100 1,863,720 2,329,650 3,106,200 4,659,300 and 9,318,600, with no remainder.
Since 9,318,600 cannot be divided by just 1 and 9,318,600, it is a composite number.