A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9119040 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 23 24 28 30 32 35 40 42 46 48 56 59 60 64 69 70 80 84 92 96 105 112 115 118 120 138 140 160 161 168 177 184 192 210 224 230 236 240 276 280 295 320 322 336 345 354 368 413 420 448 460 472 480 483 552 560 590 644 672 690 708 736 805 826 840 885 920 944 960 966 1,104 1,120 1,180 1,239 1,288 1,344 1,357 1,380 1,416 1,472 1,610 1,652 1,680 1,770 1,840 1,888 1,932 2,065 2,208 2,240 2,360 2,415 2,478 2,576 2,714 2,760 2,832 3,220 3,304 3,360 3,540 3,680 3,776 3,864 4,071 4,130 4,416 4,720 4,830 4,956 5,152 5,428 5,520 5,664 6,195 6,440 6,608 6,720 6,785 7,080 7,360 7,728 8,142 8,260 9,440 9,499 9,660 9,912 10,304 10,856 11,040 11,328 12,390 12,880 13,216 13,570 14,160 15,456 16,284 16,520 18,880 18,998 19,320 19,824 20,355 21,712 22,080 24,780 25,760 26,432 27,140 28,320 28,497 30,912 32,568 33,040 37,996 38,640 39,648 40,710 43,424 47,495 49,560 51,520 54,280 56,640 56,994 65,136 66,080 75,992 77,280 79,296 81,420 86,848 94,990 99,120 108,560 113,988 130,272 132,160 142,485 151,984 154,560 162,840 189,980 198,240 217,120 227,976 260,544 284,970 303,968 325,680 379,960 396,480 434,240 455,952 569,940 607,936 651,360 759,920 911,904 1,139,880 1,302,720 1,519,840 1,823,808 2,279,760 3,039,680 4,559,520 and 9,119,040, with no remainder.
Since 9,119,040 cannot be divided by just 1 and 9,119,040, it is not a prime number.