Online GCD Calculator is useful to find the GCD of 755, 438, 620 quickly. Get the easiest ways to solve the greatest common divisor of 755, 438, 620 i.e 1 in different methods as follows.
Given Input numbers are 755, 438, 620
In the factoring method, we have to find the divisors of all numbers
Divisors of 755 :
The positive integer divisors of 755 that completely divides 755 are.
1, 5, 151, 755
Divisors of 438 :
The positive integer divisors of 438 that completely divides 438 are.
1, 2, 3, 6, 73, 146, 219, 438
Divisors of 620 :
The positive integer divisors of 620 that completely divides 620 are.
1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
GCD of numbers is the greatest common divisor
So, the GCD (755, 438, 620) = 1.
Given numbers are 755, 438, 620
The list of prime factors of all numbers are
Prime factors of 755 are 5 x 151
Prime factors of 438 are 2 x 3 x 73
Prime factors of 620 are 2 x 2 x 5 x 31
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 755, 438, 620
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(755, 438) = 330690
GCD(755, 438) = ( 755 x 438 ) / 330690
= 755 / 438
= 755
Step2:
LCM(1, 620) = 620
GCD(1, 620) = ( 1 x 620 ) / 620
= 1 / 620
= 1
So, Greatest Common Divisor of 755, 438, 620 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 755, 438, 620
The greatest common divisor of numbers 755, 438, 620 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 755, 438, 620 is 1.
1. What is the GCD of 755, 438, 620?
GCD of given numbers 755, 438, 620 is 1
2. How to calculate the greatest common divisor of 755, 438, 620?
We can find the highest common divisor of 755, 438, 620 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 755, 438, 620 i.e 1.
3. How can I use the GCD of 755, 438, 620Calculator?
Out the numbers 755, 438, 620 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.