The number 7,006,608 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 49 54 56 63 72 84 98 108 112 126 144 147 168 189 196 216 252 294 331 336 378 392 432 441 504 588 662 756 784 882 993 1,008 1,176 1,323 1,324 1,512 1,764 1,986 2,317 2,352 2,646 2,648 2,979 3,024 3,528 3,972 4,634 5,292 5,296 5,958 6,951 7,056 7,944 8,937 9,268 10,584 11,916 13,902 15,888 16,219 17,874 18,536 20,853 21,168 23,832 27,804 32,438 35,748 37,072 41,706 47,664 48,657 55,608 62,559 64,876 71,496 83,412 97,314 111,216 125,118 129,752 142,992 145,971 166,824 194,628 250,236 259,504 291,942 333,648 389,256 437,913 500,472 583,884 778,512 875,826 1,000,944 1,167,768 1,751,652 2,335,536 3,503,304 and 7,006,608, with no remainder.
Since 7,006,608 cannot be divided by just 1 and 7,006,608, it is a composite number.