Online GCD Calculator is useful to find the GCD of 398, 156, 945, 434 quickly. Get the easiest ways to solve the greatest common divisor of 398, 156, 945, 434 i.e 1 in different methods as follows.
Given Input numbers are 398, 156, 945, 434
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 156 :
The positive integer divisors of 156 that completely divides 156 are.
1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
Divisors of 945 :
The positive integer divisors of 945 that completely divides 945 are.
1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
Divisors of 434 :
The positive integer divisors of 434 that completely divides 434 are.
1, 2, 7, 14, 31, 62, 217, 434
GCD of numbers is the greatest common divisor
So, the GCD (398, 156, 945, 434) = 1.
Given numbers are 398, 156, 945, 434
The list of prime factors of all numbers are
Prime factors of 398 are 2 x 199
Prime factors of 156 are 2 x 2 x 3 x 13
Prime factors of 945 are 3 x 3 x 3 x 5 x 7
Prime factors of 434 are 2 x 7 x 31
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 398, 156, 945, 434
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(398, 156) = 31044
GCD(398, 156) = ( 398 x 156 ) / 31044
= 398 / 156
= 398
Step2:
LCM(2, 945) = 1890
GCD(2, 945) = ( 2 x 945 ) / 1890
= 2 / 945
= 2
Step3:
LCM(1, 434) = 434
GCD(1, 434) = ( 1 x 434 ) / 434
= 1 / 434
= 1
So, Greatest Common Divisor of 398, 156, 945, 434 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 398, 156, 945, 434
The greatest common divisor of numbers 398, 156, 945, 434 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 398, 156, 945, 434 is 1.
1. What is the GCD of 398, 156, 945, 434?
GCD of given numbers 398, 156, 945, 434 is 1
2. How to calculate the greatest common divisor of 398, 156, 945, 434?
We can find the highest common divisor of 398, 156, 945, 434 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, 156, 945, 434 i.e 1.
3. How can I use the GCD of 398, 156, 945, 434Calculator?
Out the numbers 398, 156, 945, 434 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.