The number 6,675,984 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 37 42 48 56 63 72 74 84 111 112 126 144 148 168 179 222 252 259 296 333 336 358 444 504 518 537 592 666 716 777 888 1,008 1,036 1,074 1,253 1,332 1,432 1,554 1,611 1,776 2,072 2,148 2,331 2,506 2,664 2,864 3,108 3,222 3,759 4,144 4,296 4,662 5,012 5,328 6,216 6,444 6,623 7,518 8,592 9,324 10,024 11,277 12,432 12,888 13,246 15,036 18,648 19,869 20,048 22,554 25,776 26,492 30,072 37,296 39,738 45,108 46,361 52,984 59,607 60,144 79,476 90,216 92,722 105,968 119,214 139,083 158,952 180,432 185,444 238,428 278,166 317,904 370,888 417,249 476,856 556,332 741,776 834,498 953,712 1,112,664 1,668,996 2,225,328 3,337,992 and 6,675,984, with no remainder.
Since 6,675,984 cannot be divided by just 1 and 6,675,984, it is a composite number.