A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4437600 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 43 48 50 60 75 80 86 96 100 120 129 150 160 172 200 215 240 258 300 344 400 430 480 516 600 645 688 800 860 1,032 1,075 1,200 1,290 1,376 1,720 1,849 2,064 2,150 2,400 2,580 3,225 3,440 3,698 4,128 4,300 5,160 5,547 6,450 6,880 7,396 8,600 9,245 10,320 11,094 12,900 14,792 17,200 18,490 20,640 22,188 25,800 27,735 29,584 34,400 36,980 44,376 46,225 51,600 55,470 59,168 73,960 88,752 92,450 103,200 110,940 138,675 147,920 177,504 184,900 221,880 277,350 295,840 369,800 443,760 554,700 739,600 887,520 1,109,400 1,479,200 2,218,800 and 4,437,600, with no remainder.
Since 4,437,600 cannot be divided by just 1 and 4,437,600, it is not a prime number.