A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 7677054 can be evenly divided by 1 2 3 6 7 9 11 14 18 21 22 29 33 42 58 63 66 77 87 99 126 154 174 191 198 203 231 261 319 382 406 462 522 573 609 638 693 957 1,146 1,218 1,337 1,386 1,719 1,827 1,914 2,101 2,233 2,674 2,871 3,438 3,654 4,011 4,202 4,466 5,539 5,742 6,303 6,699 8,022 11,078 12,033 12,606 13,398 14,707 16,617 18,909 20,097 24,066 29,414 33,234 37,818 38,773 40,194 44,121 49,851 60,929 77,546 88,242 99,702 116,319 121,858 132,363 182,787 232,638 264,726 348,957 365,574 426,503 548,361 697,914 853,006 1,096,722 1,279,509 2,559,018 3,838,527 and 7,677,054, with no remainder.
Since 7,677,054 cannot be divided by just 1 and 7,677,054, it is not a prime number.