The number 5,153,148 can be evenly divided by 1 2 3 4 6 7 9 11 12 13 14 18 21 22 26 28 33 36 39 42 44 52 63 66 77 78 84 91 99 117 121 126 132 143 154 156 169 182 198 231 234 242 252 273 286 308 338 363 364 396 429 462 468 484 507 546 572 676 693 726 819 847 858 924 1,001 1,014 1,089 1,092 1,183 1,287 1,386 1,452 1,521 1,573 1,638 1,694 1,716 1,859 2,002 2,028 2,178 2,366 2,541 2,574 2,772 3,003 3,042 3,146 3,276 3,388 3,549 3,718 4,004 4,356 4,719 4,732 5,082 5,148 5,577 6,006 6,084 6,292 7,098 7,436 7,623 9,009 9,438 10,164 10,647 11,011 11,154 12,012 13,013 14,157 14,196 15,246 16,731 18,018 18,876 20,449 21,294 22,022 22,308 26,026 28,314 30,492 33,033 33,462 36,036 39,039 40,898 42,588 44,044 52,052 56,628 61,347 66,066 66,924 78,078 81,796 99,099 117,117 122,694 132,132 143,143 156,156 184,041 198,198 234,234 245,388 286,286 368,082 396,396 429,429 468,468 572,572 736,164 858,858 1,288,287 1,717,716 2,576,574 and 5,153,148, with no remainder.
Since 5,153,148 cannot be divided by just 1 and 5,153,148, it is a composite number.