Online GCD Calculator is useful to find the GCD of 639, 142, 748, 746 quickly. Get the easiest ways to solve the greatest common divisor of 639, 142, 748, 746 i.e 1 in different methods as follows.
Given Input numbers are 639, 142, 748, 746
In the factoring method, we have to find the divisors of all numbers
Divisors of 639 :
The positive integer divisors of 639 that completely divides 639 are.
1, 3, 9, 71, 213, 639
Divisors of 142 :
The positive integer divisors of 142 that completely divides 142 are.
1, 2, 71, 142
Divisors of 748 :
The positive integer divisors of 748 that completely divides 748 are.
1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748
Divisors of 746 :
The positive integer divisors of 746 that completely divides 746 are.
1, 2, 373, 746
GCD of numbers is the greatest common divisor
So, the GCD (639, 142, 748, 746) = 1.
Given numbers are 639, 142, 748, 746
The list of prime factors of all numbers are
Prime factors of 639 are 3 x 3 x 71
Prime factors of 142 are 2 x 71
Prime factors of 748 are 2 x 2 x 11 x 17
Prime factors of 746 are 2 x 373
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 639, 142, 748, 746
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(639, 142) = 1278
GCD(639, 142) = ( 639 x 142 ) / 1278
= 639 / 142
= 639
Step2:
LCM(71, 748) = 53108
GCD(71, 748) = ( 71 x 748 ) / 53108
= 71 / 748
= 71
Step3:
LCM(1, 746) = 746
GCD(1, 746) = ( 1 x 746 ) / 746
= 1 / 746
= 1
So, Greatest Common Divisor of 639, 142, 748, 746 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 639, 142, 748, 746
The greatest common divisor of numbers 639, 142, 748, 746 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 639, 142, 748, 746 is 1.
1. What is the GCD of 639, 142, 748, 746?
GCD of given numbers 639, 142, 748, 746 is 1
2. How to calculate the greatest common divisor of 639, 142, 748, 746?
We can find the highest common divisor of 639, 142, 748, 746 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 639, 142, 748, 746 i.e 1.
3. How can I use the GCD of 639, 142, 748, 746Calculator?
Out the numbers 639, 142, 748, 746 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.