The number 1,015,056 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 36 38 42 48 53 56 57 63 72 76 84 106 112 114 126 133 144 152 159 168 171 212 228 252 266 304 318 336 342 371 399 424 456 477 504 532 636 684 742 798 848 912 954 1,007 1,008 1,064 1,113 1,197 1,272 1,368 1,484 1,596 1,908 2,014 2,128 2,226 2,394 2,544 2,736 2,968 3,021 3,192 3,339 3,816 4,028 4,452 4,788 5,936 6,042 6,384 6,678 7,049 7,632 8,056 8,904 9,063 9,576 12,084 13,356 14,098 16,112 17,808 18,126 19,152 21,147 24,168 26,712 28,196 36,252 42,294 48,336 53,424 56,392 63,441 72,504 84,588 112,784 126,882 145,008 169,176 253,764 338,352 507,528 and 1,015,056, with no remainder.
Since 1,015,056 cannot be divided by just 1 and 1,015,056, it is a composite number.