Online GCD Calculator is useful to find the GCD of 661, 791, 428 quickly. Get the easiest ways to solve the greatest common divisor of 661, 791, 428 i.e 1 in different methods as follows.
Given Input numbers are 661, 791, 428
In the factoring method, we have to find the divisors of all numbers
Divisors of 661 :
The positive integer divisors of 661 that completely divides 661 are.
1, 661
Divisors of 791 :
The positive integer divisors of 791 that completely divides 791 are.
1, 7, 113, 791
Divisors of 428 :
The positive integer divisors of 428 that completely divides 428 are.
1, 2, 4, 107, 214, 428
GCD of numbers is the greatest common divisor
So, the GCD (661, 791, 428) = 1.
Given numbers are 661, 791, 428
The list of prime factors of all numbers are
Prime factors of 661 are 661
Prime factors of 791 are 7 x 113
Prime factors of 428 are 2 x 2 x 107
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 661, 791, 428
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(661, 791) = 522851
GCD(661, 791) = ( 661 x 791 ) / 522851
= 661 / 791
= 661
Step2:
LCM(1, 428) = 428
GCD(1, 428) = ( 1 x 428 ) / 428
= 1 / 428
= 1
So, Greatest Common Divisor of 661, 791, 428 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 661, 791, 428
The greatest common divisor of numbers 661, 791, 428 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 661, 791, 428 is 1.
1. What is the GCD of 661, 791, 428?
GCD of given numbers 661, 791, 428 is 1
2. How to calculate the greatest common divisor of 661, 791, 428?
We can find the highest common divisor of 661, 791, 428 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 661, 791, 428 i.e 1.
3. How can I use the GCD of 661, 791, 428Calculator?
Out the numbers 661, 791, 428 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.