Online GCD Calculator is useful to find the GCD of 647, 438, 708, 628 quickly. Get the easiest ways to solve the greatest common divisor of 647, 438, 708, 628 i.e 1 in different methods as follows.
Given Input numbers are 647, 438, 708, 628
In the factoring method, we have to find the divisors of all numbers
Divisors of 647 :
The positive integer divisors of 647 that completely divides 647 are.
1, 647
Divisors of 438 :
The positive integer divisors of 438 that completely divides 438 are.
1, 2, 3, 6, 73, 146, 219, 438
Divisors of 708 :
The positive integer divisors of 708 that completely divides 708 are.
1, 2, 3, 4, 6, 12, 59, 118, 177, 236, 354, 708
Divisors of 628 :
The positive integer divisors of 628 that completely divides 628 are.
1, 2, 4, 157, 314, 628
GCD of numbers is the greatest common divisor
So, the GCD (647, 438, 708, 628) = 1.
Given numbers are 647, 438, 708, 628
The list of prime factors of all numbers are
Prime factors of 647 are 647
Prime factors of 438 are 2 x 3 x 73
Prime factors of 708 are 2 x 2 x 3 x 59
Prime factors of 628 are 2 x 2 x 157
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 647, 438, 708, 628
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(647, 438) = 283386
GCD(647, 438) = ( 647 x 438 ) / 283386
= 647 / 438
= 647
Step2:
LCM(1, 708) = 708
GCD(1, 708) = ( 1 x 708 ) / 708
= 1 / 708
= 1
Step3:
LCM(1, 628) = 628
GCD(1, 628) = ( 1 x 628 ) / 628
= 1 / 628
= 1
So, Greatest Common Divisor of 647, 438, 708, 628 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 647, 438, 708, 628
The greatest common divisor of numbers 647, 438, 708, 628 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 647, 438, 708, 628 is 1.
1. What is the GCD of 647, 438, 708, 628?
GCD of given numbers 647, 438, 708, 628 is 1
2. How to calculate the greatest common divisor of 647, 438, 708, 628?
We can find the highest common divisor of 647, 438, 708, 628 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 647, 438, 708, 628 i.e 1.
3. How can I use the GCD of 647, 438, 708, 628Calculator?
Out the numbers 647, 438, 708, 628 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.