77 (number)

Cardinalseventy-sevenOrdinal77th
(seventy-seventh)Factorization7 × 11Divisors1, 7, 11, 77Greek numeralΟΖ´Roman numeralLXXVII, lxxviiBinary1001101₂Ternary2212₃Senary205₆Octal115₈Duodecimal65₁₂Hexadecimal4D₁₆

77 (seventy-seven) is the natural number following 76 and preceding 78. Seventy-seven is the smallest positive integer requiring five syllables in English.