The number 4,398,750 can be evenly divided by 1 2 3 5 6 9 10 15 17 18 23 25 30 34 45 46 50 51 69 75 85 90 102 115 125 138 150 153 170 207 225 230 250 255 306 345 375 391 414 425 450 510 575 625 690 750 765 782 850 1,035 1,125 1,150 1,173 1,250 1,275 1,530 1,725 1,875 1,955 2,070 2,125 2,250 2,346 2,550 2,875 3,450 3,519 3,750 3,825 3,910 4,250 5,175 5,625 5,750 5,865 6,375 7,038 7,650 8,625 9,775 10,350 10,625 11,250 11,730 12,750 14,375 17,250 17,595 19,125 19,550 21,250 25,875 28,750 29,325 31,875 35,190 38,250 43,125 48,875 51,750 58,650 63,750 86,250 87,975 95,625 97,750 129,375 146,625 175,950 191,250 244,375 258,750 293,250 439,875 488,750 733,125 879,750 1,466,250 2,199,375 and 4,398,750, with no remainder.
Since 4,398,750 cannot be divided by just 1 and 4,398,750, it is a composite number.