The number 3,012,984 can be evenly divided by 1 2 3 4 6 8 9 12 13 18 24 26 27 29 36 37 39 52 54 58 72 74 78 87 104 108 111 116 117 148 156 174 216 222 232 234 261 296 312 333 348 351 377 444 468 481 522 666 696 702 754 783 888 936 962 999 1,044 1,073 1,131 1,332 1,404 1,443 1,508 1,566 1,924 1,998 2,088 2,146 2,262 2,664 2,808 2,886 3,016 3,132 3,219 3,393 3,848 3,996 4,292 4,329 4,524 5,772 6,264 6,438 6,786 7,992 8,584 8,658 9,048 9,657 10,179 11,544 12,876 12,987 13,572 13,949 17,316 19,314 20,358 25,752 25,974 27,144 27,898 28,971 34,632 38,628 40,716 41,847 51,948 55,796 57,942 77,256 81,432 83,694 103,896 111,592 115,884 125,541 167,388 231,768 251,082 334,776 376,623 502,164 753,246 1,004,328 1,506,492 and 3,012,984, with no remainder.
Since 3,012,984 cannot be divided by just 1 and 3,012,984, it is a composite number.