Online GCD Calculator is useful to find the GCD of 687, 702, 202, 639 quickly. Get the easiest ways to solve the greatest common divisor of 687, 702, 202, 639 i.e 1 in different methods as follows.
Given Input numbers are 687, 702, 202, 639
In the factoring method, we have to find the divisors of all numbers
Divisors of 687 :
The positive integer divisors of 687 that completely divides 687 are.
1, 3, 229, 687
Divisors of 702 :
The positive integer divisors of 702 that completely divides 702 are.
1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702
Divisors of 202 :
The positive integer divisors of 202 that completely divides 202 are.
1, 2, 101, 202
Divisors of 639 :
The positive integer divisors of 639 that completely divides 639 are.
1, 3, 9, 71, 213, 639
GCD of numbers is the greatest common divisor
So, the GCD (687, 702, 202, 639) = 1.
Given numbers are 687, 702, 202, 639
The list of prime factors of all numbers are
Prime factors of 687 are 3 x 229
Prime factors of 702 are 2 x 3 x 3 x 3 x 13
Prime factors of 202 are 2 x 101
Prime factors of 639 are 3 x 3 x 71
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 687, 702, 202, 639
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(687, 702) = 160758
GCD(687, 702) = ( 687 x 702 ) / 160758
= 687 / 702
= 687
Step2:
LCM(3, 202) = 606
GCD(3, 202) = ( 3 x 202 ) / 606
= 3 / 202
= 3
Step3:
LCM(1, 639) = 639
GCD(1, 639) = ( 1 x 639 ) / 639
= 1 / 639
= 1
So, Greatest Common Divisor of 687, 702, 202, 639 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 687, 702, 202, 639
The greatest common divisor of numbers 687, 702, 202, 639 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 687, 702, 202, 639 is 1.
1. What is the GCD of 687, 702, 202, 639?
GCD of given numbers 687, 702, 202, 639 is 1
2. How to calculate the greatest common divisor of 687, 702, 202, 639?
We can find the highest common divisor of 687, 702, 202, 639 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 687, 702, 202, 639 i.e 1.
3. How can I use the GCD of 687, 702, 202, 639Calculator?
Out the numbers 687, 702, 202, 639 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.