The number 2,374,848 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 31 32 36 38 42 48 56 57 62 63 64 72 76 84 93 96 112 114 124 126 133 144 152 168 171 186 192 217 224 228 248 252 266 279 288 304 336 342 372 399 434 448 456 496 504 532 558 576 589 608 651 672 684 744 798 868 912 992 1,008 1,064 1,116 1,178 1,197 1,216 1,302 1,344 1,368 1,488 1,596 1,736 1,767 1,824 1,953 1,984 2,016 2,128 2,232 2,356 2,394 2,604 2,736 2,976 3,192 3,472 3,534 3,648 3,906 4,032 4,123 4,256 4,464 4,712 4,788 5,208 5,301 5,472 5,952 6,384 6,944 7,068 7,812 8,246 8,512 8,928 9,424 9,576 10,416 10,602 10,944 12,369 12,768 13,888 14,136 15,624 16,492 17,856 18,848 19,152 20,832 21,204 24,738 25,536 28,272 31,248 32,984 37,107 37,696 38,304 41,664 42,408 49,476 56,544 62,496 65,968 74,214 76,608 84,816 98,952 113,088 124,992 131,936 148,428 169,632 197,904 263,872 296,856 339,264 395,808 593,712 791,616 1,187,424 and 2,374,848, with no remainder.
Since 2,374,848 cannot be divided by just 1 and 2,374,848, it is a composite number.