A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4113660 can be evenly divided by 1 2 3 4 5 6 10 12 15 17 20 30 34 37 51 60 68 74 85 102 109 111 148 170 185 204 218 222 255 327 340 370 436 444 510 545 555 629 654 740 1,020 1,090 1,110 1,258 1,308 1,635 1,853 1,887 2,180 2,220 2,516 3,145 3,270 3,706 3,774 4,033 5,559 6,290 6,540 7,412 7,548 8,066 9,265 9,435 11,118 12,099 12,580 16,132 18,530 18,870 20,165 22,236 24,198 27,795 37,060 37,740 40,330 48,396 55,590 60,495 68,561 80,660 111,180 120,990 137,122 205,683 241,980 274,244 342,805 411,366 685,610 822,732 1,028,415 1,371,220 2,056,830 and 4,113,660, with no remainder.
Since 4,113,660 cannot be divided by just 1 and 4,113,660, it is not a prime number.