Online GCD Calculator is useful to find the GCD of 680, 683, 665, 139 quickly. Get the easiest ways to solve the greatest common divisor of 680, 683, 665, 139 i.e 1 in different methods as follows.
Given Input numbers are 680, 683, 665, 139
In the factoring method, we have to find the divisors of all numbers
Divisors of 680 :
The positive integer divisors of 680 that completely divides 680 are.
1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
Divisors of 683 :
The positive integer divisors of 683 that completely divides 683 are.
1, 683
Divisors of 665 :
The positive integer divisors of 665 that completely divides 665 are.
1, 5, 7, 19, 35, 95, 133, 665
Divisors of 139 :
The positive integer divisors of 139 that completely divides 139 are.
1, 139
GCD of numbers is the greatest common divisor
So, the GCD (680, 683, 665, 139) = 1.
Given numbers are 680, 683, 665, 139
The list of prime factors of all numbers are
Prime factors of 680 are 2 x 2 x 2 x 5 x 17
Prime factors of 683 are 683
Prime factors of 665 are 5 x 7 x 19
Prime factors of 139 are 139
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 680, 683, 665, 139
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(680, 683) = 464440
GCD(680, 683) = ( 680 x 683 ) / 464440
= 680 / 683
= 680
Step2:
LCM(1, 665) = 665
GCD(1, 665) = ( 1 x 665 ) / 665
= 1 / 665
= 1
Step3:
LCM(1, 139) = 139
GCD(1, 139) = ( 1 x 139 ) / 139
= 1 / 139
= 1
So, Greatest Common Divisor of 680, 683, 665, 139 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 680, 683, 665, 139
The greatest common divisor of numbers 680, 683, 665, 139 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 680, 683, 665, 139 is 1.
1. What is the GCD of 680, 683, 665, 139?
GCD of given numbers 680, 683, 665, 139 is 1
2. How to calculate the greatest common divisor of 680, 683, 665, 139?
We can find the highest common divisor of 680, 683, 665, 139 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 680, 683, 665, 139 i.e 1.
3. How can I use the GCD of 680, 683, 665, 139Calculator?
Out the numbers 680, 683, 665, 139 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.