The number 5,278,464 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 29 32 36 48 58 64 72 79 87 96 116 128 144 158 174 192 232 237 256 261 288 316 348 384 464 474 522 576 632 696 711 768 928 948 1,044 1,152 1,264 1,392 1,422 1,856 1,896 2,088 2,291 2,304 2,528 2,784 2,844 3,712 3,792 4,176 4,582 5,056 5,568 5,688 6,873 7,424 7,584 8,352 9,164 10,112 11,136 11,376 13,746 15,168 16,704 18,328 20,224 20,619 22,272 22,752 27,492 30,336 33,408 36,656 41,238 45,504 54,984 60,672 66,816 73,312 82,476 91,008 109,968 146,624 164,952 182,016 219,936 293,248 329,904 439,872 586,496 659,808 879,744 1,319,616 1,759,488 2,639,232 and 5,278,464, with no remainder.
Since 5,278,464 cannot be divided by just 1 and 5,278,464, it is a composite number.