Online GCD Calculator is useful to find the GCD of 421, 680, 646, 109 quickly. Get the easiest ways to solve the greatest common divisor of 421, 680, 646, 109 i.e 1 in different methods as follows.
Given Input numbers are 421, 680, 646, 109
In the factoring method, we have to find the divisors of all numbers
Divisors of 421 :
The positive integer divisors of 421 that completely divides 421 are.
1, 421
Divisors of 680 :
The positive integer divisors of 680 that completely divides 680 are.
1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
Divisors of 646 :
The positive integer divisors of 646 that completely divides 646 are.
1, 2, 17, 19, 34, 38, 323, 646
Divisors of 109 :
The positive integer divisors of 109 that completely divides 109 are.
1, 109
GCD of numbers is the greatest common divisor
So, the GCD (421, 680, 646, 109) = 1.
Given numbers are 421, 680, 646, 109
The list of prime factors of all numbers are
Prime factors of 421 are 421
Prime factors of 680 are 2 x 2 x 2 x 5 x 17
Prime factors of 646 are 2 x 17 x 19
Prime factors of 109 are 109
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 421, 680, 646, 109
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(421, 680) = 286280
GCD(421, 680) = ( 421 x 680 ) / 286280
= 421 / 680
= 421
Step2:
LCM(1, 646) = 646
GCD(1, 646) = ( 1 x 646 ) / 646
= 1 / 646
= 1
Step3:
LCM(1, 109) = 109
GCD(1, 109) = ( 1 x 109 ) / 109
= 1 / 109
= 1
So, Greatest Common Divisor of 421, 680, 646, 109 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 421, 680, 646, 109
The greatest common divisor of numbers 421, 680, 646, 109 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 421, 680, 646, 109 is 1.
1. What is the GCD of 421, 680, 646, 109?
GCD of given numbers 421, 680, 646, 109 is 1
2. How to calculate the greatest common divisor of 421, 680, 646, 109?
We can find the highest common divisor of 421, 680, 646, 109 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 421, 680, 646, 109 i.e 1.
3. How can I use the GCD of 421, 680, 646, 109Calculator?
Out the numbers 421, 680, 646, 109 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.