The number 5,951,880 can be evenly divided by 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 30 33 36 40 44 45 54 55 60 66 72 81 88 90 99 108 110 120 132 135 162 165 167 180 198 216 220 264 270 297 324 330 334 360 396 405 440 495 501 540 594 648 660 668 792 810 835 891 990 1,002 1,080 1,188 1,320 1,336 1,485 1,503 1,620 1,670 1,782 1,837 1,980 2,004 2,376 2,505 2,970 3,006 3,240 3,340 3,564 3,674 3,960 4,008 4,455 4,509 5,010 5,511 5,940 6,012 6,680 7,128 7,348 7,515 8,910 9,018 9,185 10,020 11,022 11,880 12,024 13,527 14,696 15,030 16,533 17,820 18,036 18,370 20,040 22,044 22,545 27,054 27,555 30,060 33,066 35,640 36,072 36,740 44,088 45,090 49,599 54,108 55,110 60,120 66,132 67,635 73,480 82,665 90,180 99,198 108,216 110,220 132,264 135,270 148,797 165,330 180,360 198,396 220,440 247,995 270,540 297,594 330,660 396,792 495,990 541,080 595,188 661,320 743,985 991,980 1,190,376 1,487,970 1,983,960 2,975,940 and 5,951,880, with no remainder.
Since 5,951,880 cannot be divided by just 1 and 5,951,880, it is a composite number.