Online GCD Calculator is useful to find the GCD of 77, 81, 82, 91 quickly. Get the easiest ways to solve the greatest common divisor of 77, 81, 82, 91 i.e 1 in different methods as follows.
Given Input numbers are 77, 81, 82, 91
In the factoring method, we have to find the divisors of all numbers
Divisors of 77 :
The positive integer divisors of 77 that completely divides 77 are.
1, 7, 11, 77
Divisors of 81 :
The positive integer divisors of 81 that completely divides 81 are.
1, 3, 9, 27, 81
Divisors of 82 :
The positive integer divisors of 82 that completely divides 82 are.
1, 2, 41, 82
Divisors of 91 :
The positive integer divisors of 91 that completely divides 91 are.
1, 7, 13, 91
GCD of numbers is the greatest common divisor
So, the GCD (77, 81, 82, 91) = 1.
Given numbers are 77, 81, 82, 91
The list of prime factors of all numbers are
Prime factors of 77 are 7 x 11
Prime factors of 81 are 3 x 3 x 3 x 3
Prime factors of 82 are 2 x 41
Prime factors of 91 are 7 x 13
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 77, 81, 82, 91
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(77, 81) = 6237
GCD(77, 81) = ( 77 x 81 ) / 6237
= 77 / 81
= 77
Step2:
LCM(1, 82) = 82
GCD(1, 82) = ( 1 x 82 ) / 82
= 1 / 82
= 1
Step3:
LCM(1, 91) = 91
GCD(1, 91) = ( 1 x 91 ) / 91
= 1 / 91
= 1
So, Greatest Common Divisor of 77, 81, 82, 91 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 77, 81, 82, 91
The greatest common divisor of numbers 77, 81, 82, 91 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 77, 81, 82, 91 is 1.
1. What is the GCD of 77, 81, 82, 91?
GCD of given numbers 77, 81, 82, 91 is 1
2. How to calculate the greatest common divisor of 77, 81, 82, 91?
We can find the highest common divisor of 77, 81, 82, 91 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 77, 81, 82, 91 i.e 1.
3. How can I use the GCD of 77, 81, 82, 91Calculator?
Out the numbers 77, 81, 82, 91 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.