Online GCD Calculator is useful to find the GCD of 686, 136, 377, 421 quickly. Get the easiest ways to solve the greatest common divisor of 686, 136, 377, 421 i.e 1 in different methods as follows.
Given Input numbers are 686, 136, 377, 421
In the factoring method, we have to find the divisors of all numbers
Divisors of 686 :
The positive integer divisors of 686 that completely divides 686 are.
1, 2, 7, 14, 49, 98, 343, 686
Divisors of 136 :
The positive integer divisors of 136 that completely divides 136 are.
1, 2, 4, 8, 17, 34, 68, 136
Divisors of 377 :
The positive integer divisors of 377 that completely divides 377 are.
1, 13, 29, 377
Divisors of 421 :
The positive integer divisors of 421 that completely divides 421 are.
1, 421
GCD of numbers is the greatest common divisor
So, the GCD (686, 136, 377, 421) = 1.
Given numbers are 686, 136, 377, 421
The list of prime factors of all numbers are
Prime factors of 686 are 2 x 7 x 7 x 7
Prime factors of 136 are 2 x 2 x 2 x 17
Prime factors of 377 are 13 x 29
Prime factors of 421 are 421
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 686, 136, 377, 421
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(686, 136) = 46648
GCD(686, 136) = ( 686 x 136 ) / 46648
= 686 / 136
= 686
Step2:
LCM(2, 377) = 754
GCD(2, 377) = ( 2 x 377 ) / 754
= 2 / 377
= 2
Step3:
LCM(1, 421) = 421
GCD(1, 421) = ( 1 x 421 ) / 421
= 1 / 421
= 1
So, Greatest Common Divisor of 686, 136, 377, 421 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 686, 136, 377, 421
The greatest common divisor of numbers 686, 136, 377, 421 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 686, 136, 377, 421 is 1.
1. What is the GCD of 686, 136, 377, 421?
GCD of given numbers 686, 136, 377, 421 is 1
2. How to calculate the greatest common divisor of 686, 136, 377, 421?
We can find the highest common divisor of 686, 136, 377, 421 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 686, 136, 377, 421 i.e 1.
3. How can I use the GCD of 686, 136, 377, 421Calculator?
Out the numbers 686, 136, 377, 421 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.