The number 3,053,376 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 19 24 27 31 32 36 38 48 54 57 62 64 72 76 81 93 96 108 114 124 144 152 162 171 186 192 216 228 248 279 288 304 324 342 372 432 456 496 513 558 576 589 608 648 684 744 837 864 912 992 1,026 1,116 1,178 1,216 1,296 1,368 1,488 1,539 1,674 1,728 1,767 1,824 1,984 2,052 2,232 2,356 2,511 2,592 2,736 2,976 3,078 3,348 3,534 3,648 4,104 4,464 4,712 5,022 5,184 5,301 5,472 5,952 6,156 6,696 7,068 8,208 8,928 9,424 10,044 10,602 10,944 12,312 13,392 14,136 15,903 16,416 17,856 18,848 20,088 21,204 24,624 26,784 28,272 31,806 32,832 37,696 40,176 42,408 47,709 49,248 53,568 56,544 63,612 80,352 84,816 95,418 98,496 113,088 127,224 160,704 169,632 190,836 254,448 339,264 381,672 508,896 763,344 1,017,792 1,526,688 and 3,053,376, with no remainder.
Since 3,053,376 cannot be divided by just 1 and 3,053,376, it is a composite number.