The number 5,305,248 can be evenly divided by 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 72 78 96 104 109 117 144 156 169 208 218 234 288 312 327 338 416 436 468 507 624 654 676 872 936 981 1,014 1,248 1,308 1,352 1,417 1,521 1,744 1,872 1,962 2,028 2,616 2,704 2,834 3,042 3,488 3,744 3,924 4,056 4,251 5,232 5,408 5,668 6,084 7,848 8,112 8,502 10,464 11,336 12,168 12,753 15,696 16,224 17,004 18,421 22,672 24,336 25,506 31,392 34,008 36,842 45,344 48,672 51,012 55,263 68,016 73,684 102,024 110,526 136,032 147,368 165,789 204,048 221,052 294,736 331,578 408,096 442,104 589,472 663,156 884,208 1,326,312 1,768,416 2,652,624 and 5,305,248, with no remainder.
Since 5,305,248 cannot be divided by just 1 and 5,305,248, it is a composite number.