A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 8380080 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 103 113 120 144 180 206 226 240 309 339 360 412 452 515 565 618 678 720 824 904 927 1,017 1,030 1,130 1,236 1,356 1,545 1,648 1,695 1,808 1,854 2,034 2,060 2,260 2,472 2,712 3,090 3,390 3,708 4,068 4,120 4,520 4,635 4,944 5,085 5,424 6,180 6,780 7,416 8,136 8,240 9,040 9,270 10,170 11,639 12,360 13,560 14,832 16,272 18,540 20,340 23,278 24,720 27,120 34,917 37,080 40,680 46,556 58,195 69,834 74,160 81,360 93,112 104,751 116,390 139,668 174,585 186,224 209,502 232,780 279,336 349,170 419,004 465,560 523,755 558,672 698,340 838,008 931,120 1,047,510 1,396,680 1,676,016 2,095,020 2,793,360 4,190,040 and 8,380,080, with no remainder.
Since 8,380,080 cannot be divided by just 1 and 8,380,080, it is not a prime number.