The number 2,523,696 can be evenly divided by 1 2 3 4 6 7 8 12 14 16 21 24 28 29 37 42 48 49 56 58 74 84 87 98 111 112 116 147 148 168 174 196 203 222 232 259 294 296 336 348 392 406 444 464 518 588 592 609 696 777 784 812 888 1,036 1,073 1,176 1,218 1,392 1,421 1,554 1,624 1,776 1,813 2,072 2,146 2,352 2,436 2,842 3,108 3,219 3,248 3,626 4,144 4,263 4,292 4,872 5,439 5,684 6,216 6,438 7,252 7,511 8,526 8,584 9,744 10,878 11,368 12,432 12,876 14,504 15,022 17,052 17,168 21,756 22,533 22,736 25,752 29,008 30,044 34,104 43,512 45,066 51,504 52,577 60,088 68,208 87,024 90,132 105,154 120,176 157,731 180,264 210,308 315,462 360,528 420,616 630,924 841,232 1,261,848 and 2,523,696, with no remainder.
Since 2,523,696 cannot be divided by just 1 and 2,523,696, it is a composite number.