Online GCD Calculator is useful to find the GCD of 420, 332, 687, 178 quickly. Get the easiest ways to solve the greatest common divisor of 420, 332, 687, 178 i.e 1 in different methods as follows.
Given Input numbers are 420, 332, 687, 178
In the factoring method, we have to find the divisors of all numbers
Divisors of 420 :
The positive integer divisors of 420 that completely divides 420 are.
1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
Divisors of 332 :
The positive integer divisors of 332 that completely divides 332 are.
1, 2, 4, 83, 166, 332
Divisors of 687 :
The positive integer divisors of 687 that completely divides 687 are.
1, 3, 229, 687
Divisors of 178 :
The positive integer divisors of 178 that completely divides 178 are.
1, 2, 89, 178
GCD of numbers is the greatest common divisor
So, the GCD (420, 332, 687, 178) = 1.
Given numbers are 420, 332, 687, 178
The list of prime factors of all numbers are
Prime factors of 420 are 2 x 2 x 3 x 5 x 7
Prime factors of 332 are 2 x 2 x 83
Prime factors of 687 are 3 x 229
Prime factors of 178 are 2 x 89
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 420, 332, 687, 178
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(420, 332) = 34860
GCD(420, 332) = ( 420 x 332 ) / 34860
= 420 / 332
= 420
Step2:
LCM(4, 687) = 2748
GCD(4, 687) = ( 4 x 687 ) / 2748
= 4 / 687
= 4
Step3:
LCM(1, 178) = 178
GCD(1, 178) = ( 1 x 178 ) / 178
= 1 / 178
= 1
So, Greatest Common Divisor of 420, 332, 687, 178 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 420, 332, 687, 178
The greatest common divisor of numbers 420, 332, 687, 178 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 420, 332, 687, 178 is 1.
1. What is the GCD of 420, 332, 687, 178?
GCD of given numbers 420, 332, 687, 178 is 1
2. How to calculate the greatest common divisor of 420, 332, 687, 178?
We can find the highest common divisor of 420, 332, 687, 178 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 420, 332, 687, 178 i.e 1.
3. How can I use the GCD of 420, 332, 687, 178Calculator?
Out the numbers 420, 332, 687, 178 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.