The number 6,350,256 can be evenly divided by 1 2 3 4 6 8 9 11 12 16 18 19 22 24 33 36 38 44 48 57 66 72 76 88 99 114 132 144 152 171 176 198 209 211 228 264 304 342 396 418 422 456 528 627 633 684 792 836 844 912 1,254 1,266 1,368 1,584 1,672 1,688 1,881 1,899 2,321 2,508 2,532 2,736 3,344 3,376 3,762 3,798 4,009 4,642 5,016 5,064 6,963 7,524 7,596 8,018 9,284 10,032 10,128 12,027 13,926 15,048 15,192 16,036 18,568 20,889 24,054 27,852 30,096 30,384 32,072 36,081 37,136 41,778 44,099 48,108 55,704 64,144 72,162 83,556 88,198 96,216 111,408 132,297 144,324 167,112 176,396 192,432 264,594 288,648 334,224 352,792 396,891 529,188 577,296 705,584 793,782 1,058,376 1,587,564 2,116,752 3,175,128 and 6,350,256, with no remainder.
Since 6,350,256 cannot be divided by just 1 and 6,350,256, it is a composite number.