A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4152600 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 72 75 90 100 108 120 135 150 180 200 216 225 270 300 360 450 540 600 675 769 900 1,080 1,350 1,538 1,800 2,307 2,700 3,076 3,845 4,614 5,400 6,152 6,921 7,690 9,228 11,535 13,842 15,380 18,456 19,225 20,763 23,070 27,684 30,760 34,605 38,450 41,526 46,140 55,368 57,675 69,210 76,900 83,052 92,280 103,815 115,350 138,420 153,800 166,104 173,025 207,630 230,700 276,840 346,050 415,260 461,400 519,075 692,100 830,520 1,038,150 1,384,200 2,076,300 and 4,152,600, with no remainder.
Since 4,152,600 cannot be divided by just 1 and 4,152,600, it is not a prime number.