A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4617480 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 23 24 28 30 35 40 42 46 56 60 69 70 84 92 105 115 120 138 140 161 168 184 210 230 239 276 280 322 345 420 460 478 483 552 644 690 717 805 840 920 956 966 1,195 1,288 1,380 1,434 1,610 1,673 1,912 1,932 2,390 2,415 2,760 2,868 3,220 3,346 3,585 3,864 4,780 4,830 5,019 5,497 5,736 6,440 6,692 7,170 8,365 9,560 9,660 10,038 10,994 13,384 14,340 16,491 16,730 19,320 20,076 21,988 25,095 27,485 28,680 32,982 33,460 38,479 40,152 43,976 50,190 54,970 65,964 66,920 76,958 82,455 100,380 109,940 115,437 131,928 153,916 164,910 192,395 200,760 219,880 230,874 307,832 329,820 384,790 461,748 577,185 659,640 769,580 923,496 1,154,370 1,539,160 2,308,740 and 4,617,480, with no remainder.
Since 4,617,480 cannot be divided by just 1 and 4,617,480, it is not a prime number.