The number 1,499,520 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 71 80 88 96 110 120 128 132 142 160 165 176 192 213 220 240 264 284 320 330 352 355 384 426 440 480 528 568 640 660 704 710 781 852 880 960 1,056 1,065 1,136 1,320 1,408 1,420 1,562 1,704 1,760 1,920 2,112 2,130 2,272 2,343 2,640 2,840 3,124 3,408 3,520 3,905 4,224 4,260 4,544 4,686 5,280 5,680 6,248 6,816 7,040 7,810 8,520 9,088 9,372 10,560 11,360 11,715 12,496 13,632 15,620 17,040 18,744 21,120 22,720 23,430 24,992 27,264 31,240 34,080 37,488 45,440 46,860 49,984 62,480 68,160 74,976 93,720 99,968 124,960 136,320 149,952 187,440 249,920 299,904 374,880 499,840 749,760 and 1,499,520, with no remainder.
Since 1,499,520 cannot be divided by just 1 and 1,499,520, it is a composite number.