The number 5,159,640 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 19 20 24 30 31 38 40 57 60 62 73 76 93 95 114 120 124 146 152 155 186 190 219 228 248 285 292 310 365 372 380 438 456 465 570 584 589 620 730 744 760 876 930 1,095 1,140 1,178 1,240 1,387 1,460 1,752 1,767 1,860 2,190 2,263 2,280 2,356 2,774 2,920 2,945 3,534 3,720 4,161 4,380 4,526 4,712 5,548 5,890 6,789 6,935 7,068 8,322 8,760 8,835 9,052 11,096 11,315 11,780 13,578 13,870 14,136 16,644 17,670 18,104 20,805 22,630 23,560 27,156 27,740 33,288 33,945 35,340 41,610 42,997 45,260 54,312 55,480 67,890 70,680 83,220 85,994 90,520 128,991 135,780 166,440 171,988 214,985 257,982 271,560 343,976 429,970 515,964 644,955 859,940 1,031,928 1,289,910 1,719,880 2,579,820 and 5,159,640, with no remainder.
Since 5,159,640 cannot be divided by just 1 and 5,159,640, it is a composite number.