Online GCD Calculator is useful to find the GCD of 637, 561, 157, 981 quickly. Get the easiest ways to solve the greatest common divisor of 637, 561, 157, 981 i.e 1 in different methods as follows.
Given Input numbers are 637, 561, 157, 981
In the factoring method, we have to find the divisors of all numbers
Divisors of 637 :
The positive integer divisors of 637 that completely divides 637 are.
1, 7, 13, 49, 91, 637
Divisors of 561 :
The positive integer divisors of 561 that completely divides 561 are.
1, 3, 11, 17, 33, 51, 187, 561
Divisors of 157 :
The positive integer divisors of 157 that completely divides 157 are.
1, 157
Divisors of 981 :
The positive integer divisors of 981 that completely divides 981 are.
1, 3, 9, 109, 327, 981
GCD of numbers is the greatest common divisor
So, the GCD (637, 561, 157, 981) = 1.
Given numbers are 637, 561, 157, 981
The list of prime factors of all numbers are
Prime factors of 637 are 7 x 7 x 13
Prime factors of 561 are 3 x 11 x 17
Prime factors of 157 are 157
Prime factors of 981 are 3 x 3 x 109
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 637, 561, 157, 981
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(637, 561) = 357357
GCD(637, 561) = ( 637 x 561 ) / 357357
= 637 / 561
= 637
Step2:
LCM(1, 157) = 157
GCD(1, 157) = ( 1 x 157 ) / 157
= 1 / 157
= 1
Step3:
LCM(1, 981) = 981
GCD(1, 981) = ( 1 x 981 ) / 981
= 1 / 981
= 1
So, Greatest Common Divisor of 637, 561, 157, 981 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 637, 561, 157, 981
The greatest common divisor of numbers 637, 561, 157, 981 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 637, 561, 157, 981 is 1.
1. What is the GCD of 637, 561, 157, 981?
GCD of given numbers 637, 561, 157, 981 is 1
2. How to calculate the greatest common divisor of 637, 561, 157, 981?
We can find the highest common divisor of 637, 561, 157, 981 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 637, 561, 157, 981 i.e 1.
3. How can I use the GCD of 637, 561, 157, 981Calculator?
Out the numbers 637, 561, 157, 981 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.