Online GCD Calculator is useful to find the GCD of 658, 504, 138, 672 quickly. Get the easiest ways to solve the greatest common divisor of 658, 504, 138, 672 i.e 2 in different methods as follows.
Given Input numbers are 658, 504, 138, 672
In the factoring method, we have to find the divisors of all numbers
Divisors of 658 :
The positive integer divisors of 658 that completely divides 658 are.
1, 2, 7, 14, 47, 94, 329, 658
Divisors of 504 :
The positive integer divisors of 504 that completely divides 504 are.
1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504
Divisors of 138 :
The positive integer divisors of 138 that completely divides 138 are.
1, 2, 3, 6, 23, 46, 69, 138
Divisors of 672 :
The positive integer divisors of 672 that completely divides 672 are.
1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
GCD of numbers is the greatest common divisor
So, the GCD (658, 504, 138, 672) = 2.
Given numbers are 658, 504, 138, 672
The list of prime factors of all numbers are
Prime factors of 658 are 2 x 7 x 47
Prime factors of 504 are 2 x 2 x 2 x 3 x 3 x 7
Prime factors of 138 are 2 x 3 x 23
Prime factors of 672 are 2 x 2 x 2 x 2 x 2 x 3 x 7
The highest common occurrence is 21
Therefore, GCD of 658, 504, 138, 672 is 2.
Given numbers are 658, 504, 138, 672
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(658, 504) = 23688
GCD(658, 504) = ( 658 x 504 ) / 23688
= 658 / 504
= 658
Step2:
LCM(14, 138) = 966
GCD(14, 138) = ( 14 x 138 ) / 966
= 14 / 138
= 14
Step3:
LCM(2, 672) = 672
GCD(2, 672) = ( 2 x 672 ) / 672
= 2 / 672
= 2
So, Greatest Common Divisor of 658, 504, 138, 672 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 658, 504, 138, 672
The greatest common divisor of numbers 658, 504, 138, 672 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 658, 504, 138, 672 is 2.
1. What is the GCD of 658, 504, 138, 672?
GCD of given numbers 658, 504, 138, 672 is 2
2. How to calculate the greatest common divisor of 658, 504, 138, 672?
We can find the highest common divisor of 658, 504, 138, 672 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 658, 504, 138, 672 i.e 2.
3. How can I use the GCD of 658, 504, 138, 672Calculator?
Out the numbers 658, 504, 138, 672 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.