Online GCD Calculator is useful to find the GCD of 398, 704, 771, 643 quickly. Get the easiest ways to solve the greatest common divisor of 398, 704, 771, 643 i.e 1 in different methods as follows.
Given Input numbers are 398, 704, 771, 643
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 704 :
The positive integer divisors of 704 that completely divides 704 are.
1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 176, 352, 704
Divisors of 771 :
The positive integer divisors of 771 that completely divides 771 are.
1, 3, 257, 771
Divisors of 643 :
The positive integer divisors of 643 that completely divides 643 are.
1, 643
GCD of numbers is the greatest common divisor
So, the GCD (398, 704, 771, 643) = 1.
Given numbers are 398, 704, 771, 643
The list of prime factors of all numbers are
Prime factors of 398 are 2 x 199
Prime factors of 704 are 2 x 2 x 2 x 2 x 2 x 2 x 11
Prime factors of 771 are 3 x 257
Prime factors of 643 are 643
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 398, 704, 771, 643
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(398, 704) = 140096
GCD(398, 704) = ( 398 x 704 ) / 140096
= 398 / 704
= 398
Step2:
LCM(2, 771) = 1542
GCD(2, 771) = ( 2 x 771 ) / 1542
= 2 / 771
= 2
Step3:
LCM(1, 643) = 643
GCD(1, 643) = ( 1 x 643 ) / 643
= 1 / 643
= 1
So, Greatest Common Divisor of 398, 704, 771, 643 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 398, 704, 771, 643
The greatest common divisor of numbers 398, 704, 771, 643 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 398, 704, 771, 643 is 1.
1. What is the GCD of 398, 704, 771, 643?
GCD of given numbers 398, 704, 771, 643 is 1
2. How to calculate the greatest common divisor of 398, 704, 771, 643?
We can find the highest common divisor of 398, 704, 771, 643 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, 704, 771, 643 i.e 1.
3. How can I use the GCD of 398, 704, 771, 643Calculator?
Out the numbers 398, 704, 771, 643 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.