Online GCD Calculator is useful to find the GCD of 140, 865, 842, 721 quickly. Get the easiest ways to solve the greatest common divisor of 140, 865, 842, 721 i.e 1 in different methods as follows.
Given Input numbers are 140, 865, 842, 721
In the factoring method, we have to find the divisors of all numbers
Divisors of 140 :
The positive integer divisors of 140 that completely divides 140 are.
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
Divisors of 865 :
The positive integer divisors of 865 that completely divides 865 are.
1, 5, 173, 865
Divisors of 842 :
The positive integer divisors of 842 that completely divides 842 are.
1, 2, 421, 842
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 (140, 865, 842, 721) = 1.
Given numbers are 140, 865, 842, 721
The list of prime factors of all numbers are
Prime factors of 140 are 2 x 2 x 5 x 7
Prime factors of 865 are 5 x 173
Prime factors of 842 are 2 x 421
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 140, 865, 842, 721
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(140, 865) = 24220
GCD(140, 865) = ( 140 x 865 ) / 24220
= 140 / 865
= 140
Step2:
LCM(5, 842) = 4210
GCD(5, 842) = ( 5 x 842 ) / 4210
= 5 / 842
= 5
Step3:
LCM(1, 721) = 721
GCD(1, 721) = ( 1 x 721 ) / 721
= 1 / 721
= 1
So, Greatest Common Divisor of 140, 865, 842, 721 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 140, 865, 842, 721
The greatest common divisor of numbers 140, 865, 842, 721 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 140, 865, 842, 721 is 1.
1. What is the GCD of 140, 865, 842, 721?
GCD of given numbers 140, 865, 842, 721 is 1
2. How to calculate the greatest common divisor of 140, 865, 842, 721?
We can find the highest common divisor of 140, 865, 842, 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 140, 865, 842, 721 i.e 1.
3. How can I use the GCD of 140, 865, 842, 721Calculator?
Out the numbers 140, 865, 842, 721 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.