Online GCD Calculator is useful to find the GCD of 921, 698, 878, 721 quickly. Get the easiest ways to solve the greatest common divisor of 921, 698, 878, 721 i.e 1 in different methods as follows.
Given Input numbers are 921, 698, 878, 721
In the factoring method, we have to find the divisors of all numbers
Divisors of 921 :
The positive integer divisors of 921 that completely divides 921 are.
1, 3, 307, 921
Divisors of 698 :
The positive integer divisors of 698 that completely divides 698 are.
1, 2, 349, 698
Divisors of 878 :
The positive integer divisors of 878 that completely divides 878 are.
1, 2, 439, 878
Divisors of 721 :
The positive integer divisors of 721 that completely divides 721 are.
1, 7, 103, 721
GCD of numbers is the greatest common divisor
So, the GCD (921, 698, 878, 721) = 1.
Given numbers are 921, 698, 878, 721
The list of prime factors of all numbers are
Prime factors of 921 are 3 x 307
Prime factors of 698 are 2 x 349
Prime factors of 878 are 2 x 439
Prime factors of 721 are 7 x 103
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 921, 698, 878, 721
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(921, 698) = 642858
GCD(921, 698) = ( 921 x 698 ) / 642858
= 921 / 698
= 921
Step2:
LCM(1, 878) = 878
GCD(1, 878) = ( 1 x 878 ) / 878
= 1 / 878
= 1
Step3:
LCM(1, 721) = 721
GCD(1, 721) = ( 1 x 721 ) / 721
= 1 / 721
= 1
So, Greatest Common Divisor of 921, 698, 878, 721 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 921, 698, 878, 721
The greatest common divisor of numbers 921, 698, 878, 721 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 921, 698, 878, 721 is 1.
1. What is the GCD of 921, 698, 878, 721?
GCD of given numbers 921, 698, 878, 721 is 1
2. How to calculate the greatest common divisor of 921, 698, 878, 721?
We can find the highest common divisor of 921, 698, 878, 721 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 921, 698, 878, 721 i.e 1.
3. How can I use the GCD of 921, 698, 878, 721Calculator?
Out the numbers 921, 698, 878, 721 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.