A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4505760 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 96 105 108 112 120 126 135 140 144 149 160 168 180 189 210 216 224 240 252 270 280 288 298 315 336 360 378 420 432 447 480 504 540 560 596 630 672 720 745 756 840 864 894 945 1,008 1,043 1,080 1,120 1,192 1,260 1,341 1,440 1,490 1,512 1,680 1,788 1,890 2,016 2,086 2,160 2,235 2,384 2,520 2,682 2,980 3,024 3,129 3,360 3,576 3,780 4,023 4,172 4,320 4,470 4,768 5,040 5,215 5,364 5,960 6,048 6,258 6,705 7,152 7,560 8,046 8,344 8,940 9,387 10,080 10,430 10,728 11,920 12,516 13,410 14,304 15,120 15,645 16,092 16,688 17,880 18,774 20,115 20,860 21,456 23,840 25,032 26,820 28,161 30,240 31,290 32,184 33,376 35,760 37,548 40,230 41,720 42,912 46,935 50,064 53,640 56,322 62,580 64,368 71,520 75,096 80,460 83,440 93,870 100,128 107,280 112,644 125,160 128,736 140,805 150,192 160,920 166,880 187,740 214,560 225,288 250,320 281,610 300,384 321,840 375,480 450,576 500,640 563,220 643,680 750,960 901,152 1,126,440 1,501,920 2,252,880 and 4,505,760, with no remainder.
Since 4,505,760 cannot be divided by just 1 and 4,505,760, it is not a prime number.