A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4156152 can be evenly divided by 1 2 3 4 6 7 8 11 12 13 14 21 22 24 26 28 33 39 42 44 52 56 66 77 78 84 88 91 104 132 143 154 156 168 173 182 231 264 273 286 308 312 346 364 429 462 519 546 572 616 692 728 858 924 1,001 1,038 1,092 1,144 1,211 1,384 1,716 1,848 1,903 2,002 2,076 2,184 2,249 2,422 3,003 3,432 3,633 3,806 4,004 4,152 4,498 4,844 5,709 6,006 6,747 7,266 7,612 8,008 8,996 9,688 11,418 12,012 13,321 13,494 14,532 15,224 15,743 17,992 22,836 24,024 24,739 26,642 26,988 29,064 31,486 39,963 45,672 47,229 49,478 53,284 53,976 62,972 74,217 79,926 94,458 98,956 106,568 125,944 148,434 159,852 173,173 188,916 197,912 296,868 319,704 346,346 377,832 519,519 593,736 692,692 1,039,038 1,385,384 2,078,076 and 4,156,152, with no remainder.
Since 4,156,152 cannot be divided by just 1 and 4,156,152, it is not a prime number.