The number 1,707,552 can be evenly divided by 1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 32 33 36 42 44 48 49 56 63 66 72 77 84 88 96 98 99 112 121 126 132 144 147 154 168 176 196 198 224 231 242 252 264 288 294 308 336 352 363 392 396 441 462 484 504 528 539 588 616 672 693 726 784 792 847 882 924 968 1,008 1,056 1,078 1,089 1,176 1,232 1,386 1,452 1,568 1,584 1,617 1,694 1,764 1,848 1,936 2,016 2,156 2,178 2,352 2,464 2,541 2,772 2,904 3,168 3,234 3,388 3,528 3,696 3,872 4,312 4,356 4,704 4,851 5,082 5,544 5,808 5,929 6,468 6,776 7,056 7,392 7,623 8,624 8,712 9,702 10,164 11,088 11,616 11,858 12,936 13,552 14,112 15,246 17,248 17,424 17,787 19,404 20,328 22,176 23,716 25,872 27,104 30,492 34,848 35,574 38,808 40,656 47,432 51,744 53,361 60,984 71,148 77,616 81,312 94,864 106,722 121,968 142,296 155,232 189,728 213,444 243,936 284,592 426,888 569,184 853,776 and 1,707,552, with no remainder.
Since 1,707,552 cannot be divided by just 1 and 1,707,552, it is a composite number.