The number 5,277,300 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 49 50 60 70 75 84 98 100 105 140 147 150 175 196 210 245 294 300 350 359 420 490 525 588 700 718 735 980 1,050 1,077 1,225 1,436 1,470 1,795 2,100 2,154 2,450 2,513 2,940 3,590 3,675 4,308 4,900 5,026 5,385 7,180 7,350 7,539 8,975 10,052 10,770 12,565 14,700 15,078 17,591 17,950 21,540 25,130 26,925 30,156 35,182 35,900 37,695 50,260 52,773 53,850 62,825 70,364 75,390 87,955 105,546 107,700 125,650 150,780 175,910 188,475 211,092 251,300 263,865 351,820 376,950 439,775 527,730 753,900 879,550 1,055,460 1,319,325 1,759,100 2,638,650 and 5,277,300, with no remainder.
Since 5,277,300 cannot be divided by just 1 and 5,277,300, it is a composite number.