Online GCD Calculator is useful to find the GCD of 645, 671, 148, 378 quickly. Get the easiest ways to solve the greatest common divisor of 645, 671, 148, 378 i.e 1 in different methods as follows.
Given Input numbers are 645, 671, 148, 378
In the factoring method, we have to find the divisors of all numbers
Divisors of 645 :
The positive integer divisors of 645 that completely divides 645 are.
1, 3, 5, 15, 43, 129, 215, 645
Divisors of 671 :
The positive integer divisors of 671 that completely divides 671 are.
1, 11, 61, 671
Divisors of 148 :
The positive integer divisors of 148 that completely divides 148 are.
1, 2, 4, 37, 74, 148
Divisors of 378 :
The positive integer divisors of 378 that completely divides 378 are.
1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
GCD of numbers is the greatest common divisor
So, the GCD (645, 671, 148, 378) = 1.
Given numbers are 645, 671, 148, 378
The list of prime factors of all numbers are
Prime factors of 645 are 3 x 5 x 43
Prime factors of 671 are 11 x 61
Prime factors of 148 are 2 x 2 x 37
Prime factors of 378 are 2 x 3 x 3 x 3 x 7
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 645, 671, 148, 378
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(645, 671) = 432795
GCD(645, 671) = ( 645 x 671 ) / 432795
= 645 / 671
= 645
Step2:
LCM(1, 148) = 148
GCD(1, 148) = ( 1 x 148 ) / 148
= 1 / 148
= 1
Step3:
LCM(1, 378) = 378
GCD(1, 378) = ( 1 x 378 ) / 378
= 1 / 378
= 1
So, Greatest Common Divisor of 645, 671, 148, 378 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 645, 671, 148, 378
The greatest common divisor of numbers 645, 671, 148, 378 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 645, 671, 148, 378 is 1.
1. What is the GCD of 645, 671, 148, 378?
GCD of given numbers 645, 671, 148, 378 is 1
2. How to calculate the greatest common divisor of 645, 671, 148, 378?
We can find the highest common divisor of 645, 671, 148, 378 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 645, 671, 148, 378 i.e 1.
3. How can I use the GCD of 645, 671, 148, 378Calculator?
Out the numbers 645, 671, 148, 378 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.