The number 5,237,232 can be evenly divided by 1 2 3 4 6 7 8 11 12 13 14 16 21 22 24 26 28 33 39 42 44 48 52 56 66 77 78 84 88 91 104 109 112 132 143 154 156 168 176 182 208 218 231 264 273 286 308 312 327 336 364 429 436 462 528 546 572 616 624 654 728 763 858 872 924 1,001 1,092 1,144 1,199 1,232 1,308 1,417 1,456 1,526 1,716 1,744 1,848 2,002 2,184 2,288 2,289 2,398 2,616 2,834 3,003 3,052 3,432 3,597 3,696 4,004 4,251 4,368 4,578 4,796 5,232 5,668 6,006 6,104 6,864 7,194 8,008 8,393 8,502 9,156 9,592 9,919 11,336 12,012 12,208 14,388 15,587 16,016 16,786 17,004 18,312 19,184 19,838 22,672 24,024 25,179 28,776 29,757 31,174 33,572 34,008 36,624 39,676 46,761 48,048 50,358 57,552 59,514 62,348 67,144 68,016 79,352 93,522 100,716 109,109 119,028 124,696 134,288 158,704 187,044 201,432 218,218 238,056 249,392 327,327 374,088 402,864 436,436 476,112 654,654 748,176 872,872 1,309,308 1,745,744 2,618,616 and 5,237,232, with no remainder.
Since 5,237,232 cannot be divided by just 1 and 5,237,232, it is a composite number.