A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5002776 can be evenly divided by 1 2 3 4 6 8 9 12 18 19 23 24 27 36 38 46 53 54 57 69 72 76 92 106 108 114 138 152 159 171 184 207 212 216 228 276 318 342 414 424 437 456 477 513 552 621 636 684 828 874 954 1,007 1,026 1,219 1,242 1,272 1,311 1,368 1,431 1,656 1,748 1,908 2,014 2,052 2,438 2,484 2,622 2,862 3,021 3,496 3,657 3,816 3,933 4,028 4,104 4,876 4,968 5,244 5,724 6,042 7,314 7,866 8,056 9,063 9,752 10,488 10,971 11,448 11,799 12,084 14,628 15,732 18,126 21,942 23,161 23,598 24,168 27,189 29,256 31,464 32,913 36,252 43,884 46,322 47,196 54,378 65,826 69,483 72,504 87,768 92,644 94,392 108,756 131,652 138,966 185,288 208,449 217,512 263,304 277,932 416,898 555,864 625,347 833,796 1,250,694 1,667,592 2,501,388 and 5,002,776, with no remainder.
Since 5,002,776 cannot be divided by just 1 and 5,002,776, it is not a prime number.