Online GCD Calculator is useful to find the GCD of 820, 637, 425, 645 quickly. Get the easiest ways to solve the greatest common divisor of 820, 637, 425, 645 i.e 1 in different methods as follows.
Given Input numbers are 820, 637, 425, 645
In the factoring method, we have to find the divisors of all numbers
Divisors of 820 :
The positive integer divisors of 820 that completely divides 820 are.
1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
Divisors of 637 :
The positive integer divisors of 637 that completely divides 637 are.
1, 7, 13, 49, 91, 637
Divisors of 425 :
The positive integer divisors of 425 that completely divides 425 are.
1, 5, 17, 25, 85, 425
Divisors of 645 :
The positive integer divisors of 645 that completely divides 645 are.
1, 3, 5, 15, 43, 129, 215, 645
GCD of numbers is the greatest common divisor
So, the GCD (820, 637, 425, 645) = 1.
Given numbers are 820, 637, 425, 645
The list of prime factors of all numbers are
Prime factors of 820 are 2 x 2 x 5 x 41
Prime factors of 637 are 7 x 7 x 13
Prime factors of 425 are 5 x 5 x 17
Prime factors of 645 are 3 x 5 x 43
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 820, 637, 425, 645
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(820, 637) = 522340
GCD(820, 637) = ( 820 x 637 ) / 522340
= 820 / 637
= 820
Step2:
LCM(1, 425) = 425
GCD(1, 425) = ( 1 x 425 ) / 425
= 1 / 425
= 1
Step3:
LCM(1, 645) = 645
GCD(1, 645) = ( 1 x 645 ) / 645
= 1 / 645
= 1
So, Greatest Common Divisor of 820, 637, 425, 645 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 820, 637, 425, 645
The greatest common divisor of numbers 820, 637, 425, 645 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 820, 637, 425, 645 is 1.
1. What is the GCD of 820, 637, 425, 645?
GCD of given numbers 820, 637, 425, 645 is 1
2. How to calculate the greatest common divisor of 820, 637, 425, 645?
We can find the highest common divisor of 820, 637, 425, 645 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 820, 637, 425, 645 i.e 1.
3. How can I use the GCD of 820, 637, 425, 645Calculator?
Out the numbers 820, 637, 425, 645 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.