Online GCD Calculator is useful to find the GCD of 688, 152, 891, 921 quickly. Get the easiest ways to solve the greatest common divisor of 688, 152, 891, 921 i.e 1 in different methods as follows.
Given Input numbers are 688, 152, 891, 921
In the factoring method, we have to find the divisors of all numbers
Divisors of 688 :
The positive integer divisors of 688 that completely divides 688 are.
1, 2, 4, 8, 16, 43, 86, 172, 344, 688
Divisors of 152 :
The positive integer divisors of 152 that completely divides 152 are.
1, 2, 4, 8, 19, 38, 76, 152
Divisors of 891 :
The positive integer divisors of 891 that completely divides 891 are.
1, 3, 9, 11, 27, 33, 81, 99, 297, 891
Divisors of 921 :
The positive integer divisors of 921 that completely divides 921 are.
1, 3, 307, 921
GCD of numbers is the greatest common divisor
So, the GCD (688, 152, 891, 921) = 1.
Given numbers are 688, 152, 891, 921
The list of prime factors of all numbers are
Prime factors of 688 are 2 x 2 x 2 x 2 x 43
Prime factors of 152 are 2 x 2 x 2 x 19
Prime factors of 891 are 3 x 3 x 3 x 3 x 11
Prime factors of 921 are 3 x 307
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 688, 152, 891, 921
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(688, 152) = 13072
GCD(688, 152) = ( 688 x 152 ) / 13072
= 688 / 152
= 688
Step2:
LCM(8, 891) = 7128
GCD(8, 891) = ( 8 x 891 ) / 7128
= 8 / 891
= 8
Step3:
LCM(1, 921) = 921
GCD(1, 921) = ( 1 x 921 ) / 921
= 1 / 921
= 1
So, Greatest Common Divisor of 688, 152, 891, 921 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 688, 152, 891, 921
The greatest common divisor of numbers 688, 152, 891, 921 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 688, 152, 891, 921 is 1.
1. What is the GCD of 688, 152, 891, 921?
GCD of given numbers 688, 152, 891, 921 is 1
2. How to calculate the greatest common divisor of 688, 152, 891, 921?
We can find the highest common divisor of 688, 152, 891, 921 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 688, 152, 891, 921 i.e 1.
3. How can I use the GCD of 688, 152, 891, 921Calculator?
Out the numbers 688, 152, 891, 921 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.