Online GCD Calculator is useful to find the GCD of 100, 855, 634, 390 quickly. Get the easiest ways to solve the greatest common divisor of 100, 855, 634, 390 i.e 1 in different methods as follows.
Given Input numbers are 100, 855, 634, 390
In the factoring method, we have to find the divisors of all numbers
Divisors of 100 :
The positive integer divisors of 100 that completely divides 100 are.
1, 2, 4, 5, 10, 20, 25, 50, 100
Divisors of 855 :
The positive integer divisors of 855 that completely divides 855 are.
1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855
Divisors of 634 :
The positive integer divisors of 634 that completely divides 634 are.
1, 2, 317, 634
Divisors of 390 :
The positive integer divisors of 390 that completely divides 390 are.
1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
GCD of numbers is the greatest common divisor
So, the GCD (100, 855, 634, 390) = 1.
Given numbers are 100, 855, 634, 390
The list of prime factors of all numbers are
Prime factors of 100 are 2 x 2 x 5 x 5
Prime factors of 855 are 3 x 3 x 5 x 19
Prime factors of 634 are 2 x 317
Prime factors of 390 are 2 x 3 x 5 x 13
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 100, 855, 634, 390
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(100, 855) = 17100
GCD(100, 855) = ( 100 x 855 ) / 17100
= 100 / 855
= 100
Step2:
LCM(5, 634) = 3170
GCD(5, 634) = ( 5 x 634 ) / 3170
= 5 / 634
= 5
Step3:
LCM(1, 390) = 390
GCD(1, 390) = ( 1 x 390 ) / 390
= 1 / 390
= 1
So, Greatest Common Divisor of 100, 855, 634, 390 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 100, 855, 634, 390
The greatest common divisor of numbers 100, 855, 634, 390 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 100, 855, 634, 390 is 1.
1. What is the GCD of 100, 855, 634, 390?
GCD of given numbers 100, 855, 634, 390 is 1
2. How to calculate the greatest common divisor of 100, 855, 634, 390?
We can find the highest common divisor of 100, 855, 634, 390 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 100, 855, 634, 390 i.e 1.
3. How can I use the GCD of 100, 855, 634, 390Calculator?
Out the numbers 100, 855, 634, 390 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.