Online GCD Calculator is useful to find the GCD of 155, 321, 620 quickly. Get the easiest ways to solve the greatest common divisor of 155, 321, 620 i.e 1 in different methods as follows.
Given Input numbers are 155, 321, 620
In the factoring method, we have to find the divisors of all numbers
Divisors of 155 :
The positive integer divisors of 155 that completely divides 155 are.
1, 5, 31, 155
Divisors of 321 :
The positive integer divisors of 321 that completely divides 321 are.
1, 3, 107, 321
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 (155, 321, 620) = 1.
Given numbers are 155, 321, 620
The list of prime factors of all numbers are
Prime factors of 155 are 5 x 31
Prime factors of 321 are 3 x 107
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 155, 321, 620
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(155, 321) = 49755
GCD(155, 321) = ( 155 x 321 ) / 49755
= 155 / 321
= 155
Step2:
LCM(1, 620) = 620
GCD(1, 620) = ( 1 x 620 ) / 620
= 1 / 620
= 1
So, Greatest Common Divisor of 155, 321, 620 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 155, 321, 620
The greatest common divisor of numbers 155, 321, 620 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 155, 321, 620 is 1.
1. What is the GCD of 155, 321, 620?
GCD of given numbers 155, 321, 620 is 1
2. How to calculate the greatest common divisor of 155, 321, 620?
We can find the highest common divisor of 155, 321, 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 155, 321, 620 i.e 1.
3. How can I use the GCD of 155, 321, 620Calculator?
Out the numbers 155, 321, 620 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.