Online GCD Calculator is useful to find the GCD of 789, 620, 915, 742 quickly. Get the easiest ways to solve the greatest common divisor of 789, 620, 915, 742 i.e 1 in different methods as follows.
Given Input numbers are 789, 620, 915, 742
In the factoring method, we have to find the divisors of all numbers
Divisors of 789 :
The positive integer divisors of 789 that completely divides 789 are.
1, 3, 263, 789
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
Divisors of 915 :
The positive integer divisors of 915 that completely divides 915 are.
1, 3, 5, 15, 61, 183, 305, 915
Divisors of 742 :
The positive integer divisors of 742 that completely divides 742 are.
1, 2, 7, 14, 53, 106, 371, 742
GCD of numbers is the greatest common divisor
So, the GCD (789, 620, 915, 742) = 1.
Given numbers are 789, 620, 915, 742
The list of prime factors of all numbers are
Prime factors of 789 are 3 x 263
Prime factors of 620 are 2 x 2 x 5 x 31
Prime factors of 915 are 3 x 5 x 61
Prime factors of 742 are 2 x 7 x 53
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 789, 620, 915, 742
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(789, 620) = 489180
GCD(789, 620) = ( 789 x 620 ) / 489180
= 789 / 620
= 789
Step2:
LCM(1, 915) = 915
GCD(1, 915) = ( 1 x 915 ) / 915
= 1 / 915
= 1
Step3:
LCM(1, 742) = 742
GCD(1, 742) = ( 1 x 742 ) / 742
= 1 / 742
= 1
So, Greatest Common Divisor of 789, 620, 915, 742 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 789, 620, 915, 742
The greatest common divisor of numbers 789, 620, 915, 742 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 789, 620, 915, 742 is 1.
1. What is the GCD of 789, 620, 915, 742?
GCD of given numbers 789, 620, 915, 742 is 1
2. How to calculate the greatest common divisor of 789, 620, 915, 742?
We can find the highest common divisor of 789, 620, 915, 742 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 789, 620, 915, 742 i.e 1.
3. How can I use the GCD of 789, 620, 915, 742Calculator?
Out the numbers 789, 620, 915, 742 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.