Online GCD Calculator is useful to find the GCD of 780, 948, 695, 821 quickly. Get the easiest ways to solve the greatest common divisor of 780, 948, 695, 821 i.e 1 in different methods as follows.
Given Input numbers are 780, 948, 695, 821
In the factoring method, we have to find the divisors of all numbers
Divisors of 780 :
The positive integer divisors of 780 that completely divides 780 are.
1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
Divisors of 948 :
The positive integer divisors of 948 that completely divides 948 are.
1, 2, 3, 4, 6, 12, 79, 158, 237, 316, 474, 948
Divisors of 695 :
The positive integer divisors of 695 that completely divides 695 are.
1, 5, 139, 695
Divisors of 821 :
The positive integer divisors of 821 that completely divides 821 are.
1, 821
GCD of numbers is the greatest common divisor
So, the GCD (780, 948, 695, 821) = 1.
Given numbers are 780, 948, 695, 821
The list of prime factors of all numbers are
Prime factors of 780 are 2 x 2 x 3 x 5 x 13
Prime factors of 948 are 2 x 2 x 3 x 79
Prime factors of 695 are 5 x 139
Prime factors of 821 are 821
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 780, 948, 695, 821
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(780, 948) = 61620
GCD(780, 948) = ( 780 x 948 ) / 61620
= 780 / 948
= 780
Step2:
LCM(12, 695) = 8340
GCD(12, 695) = ( 12 x 695 ) / 8340
= 12 / 695
= 12
Step3:
LCM(1, 821) = 821
GCD(1, 821) = ( 1 x 821 ) / 821
= 1 / 821
= 1
So, Greatest Common Divisor of 780, 948, 695, 821 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 780, 948, 695, 821
The greatest common divisor of numbers 780, 948, 695, 821 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 780, 948, 695, 821 is 1.
1. What is the GCD of 780, 948, 695, 821?
GCD of given numbers 780, 948, 695, 821 is 1
2. How to calculate the greatest common divisor of 780, 948, 695, 821?
We can find the highest common divisor of 780, 948, 695, 821 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 780, 948, 695, 821 i.e 1.
3. How can I use the GCD of 780, 948, 695, 821Calculator?
Out the numbers 780, 948, 695, 821 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.