Online GCD Calculator is useful to find the GCD of 398, 938, 788, 140 quickly. Get the easiest ways to solve the greatest common divisor of 398, 938, 788, 140 i.e 2 in different methods as follows.
Given Input numbers are 398, 938, 788, 140
In the factoring method, we have to find the divisors of all numbers
Divisors of 398 :
The positive integer divisors of 398 that completely divides 398 are.
1, 2, 199, 398
Divisors of 938 :
The positive integer divisors of 938 that completely divides 938 are.
1, 2, 7, 14, 67, 134, 469, 938
Divisors of 788 :
The positive integer divisors of 788 that completely divides 788 are.
1, 2, 4, 197, 394, 788
Divisors of 140 :
The positive integer divisors of 140 that completely divides 140 are.
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
GCD of numbers is the greatest common divisor
So, the GCD (398, 938, 788, 140) = 2.
Given numbers are 398, 938, 788, 140
The list of prime factors of all numbers are
Prime factors of 398 are 2 x 199
Prime factors of 938 are 2 x 7 x 67
Prime factors of 788 are 2 x 2 x 197
Prime factors of 140 are 2 x 2 x 5 x 7
The highest common occurrence is 21
Therefore, GCD of 398, 938, 788, 140 is 2.
Given numbers are 398, 938, 788, 140
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(398, 938) = 186662
GCD(398, 938) = ( 398 x 938 ) / 186662
= 398 / 938
= 398
Step2:
LCM(2, 788) = 788
GCD(2, 788) = ( 2 x 788 ) / 788
= 2 / 788
= 2
Step3:
LCM(2, 140) = 140
GCD(2, 140) = ( 2 x 140 ) / 140
= 2 / 140
= 2
So, Greatest Common Divisor of 398, 938, 788, 140 is 2
Here are some samples of GCD of Numbers calculations.
Given numbers are 398, 938, 788, 140
The greatest common divisor of numbers 398, 938, 788, 140 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 398, 938, 788, 140 is 2.
1. What is the GCD of 398, 938, 788, 140?
GCD of given numbers 398, 938, 788, 140 is 2
2. How to calculate the greatest common divisor of 398, 938, 788, 140?
We can find the highest common divisor of 398, 938, 788, 140 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 398, 938, 788, 140 i.e 2.
3. How can I use the GCD of 398, 938, 788, 140Calculator?
Out the numbers 398, 938, 788, 140 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.