MathQuarryCalculators

Primes / Is 77 prime?

Is 77 a Prime Number?

No77 = 7 x 11

77 is NOT prime: 7 × 11 = 77. That makes 7 a genuine divisor of 77 beyond 1 and 77 itself. Fully broken down, 77 = 7 × 11, for 4 divisors total. 77 sits between primes 73 and 79, 4 below and 2 above. 77: 7, 11 divide 77 evenly, checked against 2-12. 77 is odd, digit sum 14 for 77, digital root 5 for 77. 77 has 5 primes within 10 of 77.

Factors
1, 7, 11, 77
Number of factors
4
Prime?
No
Prime factorization
7 x 11
Even or odd
Odd
Square
5929
Cube
456533
Binary
1001101
Hexadecimal
4D
Roman numeral
LXXVII
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 77 →Factors of 77 →