The number 1,745,424 can be evenly divided by 1 2 3 4 6 8 9 12 16 17 18 23 24 31 34 36 46 48 51 62 68 69 72 92 93 102 124 136 138 144 153 184 186 204 207 248 272 276 279 306 368 372 391 408 414 496 527 552 558 612 713 744 782 816 828 1,054 1,104 1,116 1,173 1,224 1,426 1,488 1,564 1,581 1,656 2,108 2,139 2,232 2,346 2,448 2,852 3,128 3,162 3,312 3,519 4,216 4,278 4,464 4,692 4,743 5,704 6,256 6,324 6,417 7,038 8,432 8,556 9,384 9,486 11,408 12,121 12,648 12,834 14,076 17,112 18,768 18,972 24,242 25,296 25,668 28,152 34,224 36,363 37,944 48,484 51,336 56,304 72,726 75,888 96,968 102,672 109,089 145,452 193,936 218,178 290,904 436,356 581,808 872,712 and 1,745,424, with no remainder.
Since 1,745,424 cannot be divided by just 1 and 1,745,424, it is a composite number.