Online GCD Calculator is useful to find the GCD of 987, 243, 771 quickly. Get the easiest ways to solve the greatest common divisor of 987, 243, 771 i.e 3 in different methods as follows.
Given Input numbers are 987, 243, 771
In the factoring method, we have to find the divisors of all numbers
Divisors of 987 :
The positive integer divisors of 987 that completely divides 987 are.
1, 3, 7, 21, 47, 141, 329, 987
Divisors of 243 :
The positive integer divisors of 243 that completely divides 243 are.
1, 3, 9, 27, 81, 243
Divisors of 771 :
The positive integer divisors of 771 that completely divides 771 are.
1, 3, 257, 771
GCD of numbers is the greatest common divisor
So, the GCD (987, 243, 771) = 3.
Given numbers are 987, 243, 771
The list of prime factors of all numbers are
Prime factors of 987 are 3 x 7 x 47
Prime factors of 243 are 3 x 3 x 3 x 3 x 3
Prime factors of 771 are 3 x 257
The highest common occurrence is 31
Therefore, GCD of 987, 243, 771 is 3.
Given numbers are 987, 243, 771
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(987, 243) = 79947
GCD(987, 243) = ( 987 x 243 ) / 79947
= 987 / 243
= 987
Step2:
LCM(3, 771) = 771
GCD(3, 771) = ( 3 x 771 ) / 771
= 3 / 771
= 3
So, Greatest Common Divisor of 987, 243, 771 is 3
Here are some samples of GCD of Numbers calculations.
Given numbers are 987, 243, 771
The greatest common divisor of numbers 987, 243, 771 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 987, 243, 771 is 3.
1. What is the GCD of 987, 243, 771?
GCD of given numbers 987, 243, 771 is 3
2. How to calculate the greatest common divisor of 987, 243, 771?
We can find the highest common divisor of 987, 243, 771 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 987, 243, 771 i.e 3.
3. How can I use the GCD of 987, 243, 771Calculator?
Out the numbers 987, 243, 771 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.