The number 7,443,720 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 29 30 31 36 40 45 46 58 60 62 69 72 87 90 92 93 115 116 120 124 138 145 155 174 180 184 186 207 230 232 248 261 276 279 290 310 345 348 360 372 414 435 460 465 522 552 558 580 620 667 690 696 713 744 828 870 899 920 930 1,035 1,044 1,116 1,160 1,240 1,305 1,334 1,380 1,395 1,426 1,656 1,740 1,798 1,860 2,001 2,070 2,088 2,139 2,232 2,610 2,668 2,697 2,760 2,790 2,852 3,335 3,480 3,565 3,596 3,720 4,002 4,140 4,278 4,495 5,220 5,336 5,394 5,580 5,704 6,003 6,417 6,670 7,130 7,192 8,004 8,091 8,280 8,556 8,990 10,005 10,440 10,695 10,788 11,160 12,006 12,834 13,340 13,485 14,260 16,008 16,182 17,112 17,980 20,010 20,677 21,390 21,576 24,012 25,668 26,680 26,970 28,520 30,015 32,085 32,364 35,960 40,020 40,455 41,354 42,780 48,024 51,336 53,940 60,030 62,031 64,170 64,728 80,040 80,910 82,708 85,560 103,385 107,880 120,060 124,062 128,340 161,820 165,416 186,093 206,770 240,120 248,124 256,680 310,155 323,640 372,186 413,540 496,248 620,310 744,372 827,080 930,465 1,240,620 1,488,744 1,860,930 2,481,240 3,721,860 and 7,443,720, with no remainder.
Since 7,443,720 cannot be divided by just 1 and 7,443,720, it is a composite number.