The number 782,496 can be evenly divided by 1 2 3 4 6 8 9 11 12 13 16 18 19 22 24 26 32 33 36 38 39 44 48 52 57 66 72 76 78 88 96 99 104 114 117 132 143 144 152 156 171 176 198 208 209 228 234 247 264 286 288 304 312 342 352 396 416 418 429 456 468 494 528 572 608 624 627 684 741 792 836 858 912 936 988 1,056 1,144 1,248 1,254 1,287 1,368 1,482 1,584 1,672 1,716 1,824 1,872 1,881 1,976 2,223 2,288 2,508 2,574 2,717 2,736 2,964 3,168 3,344 3,432 3,744 3,762 3,952 4,446 4,576 5,016 5,148 5,434 5,472 5,928 6,688 6,864 7,524 7,904 8,151 8,892 10,032 10,296 10,868 11,856 13,728 15,048 16,302 17,784 20,064 20,592 21,736 23,712 24,453 30,096 32,604 35,568 41,184 43,472 48,906 60,192 65,208 71,136 86,944 97,812 130,416 195,624 260,832 391,248 and 782,496, with no remainder.
Since 782,496 cannot be divided by just 1 and 782,496, it is a composite number.