GCD of 646, 688, 987 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 646, 688, 987 quickly. Get the easiest ways to solve the greatest common divisor of 646, 688, 987 i.e 1 in different methods as follows.
Given Input numbers are 646, 688, 987
In the factoring method, we have to find the divisors of all numbers
Divisors of 646 :
The positive integer divisors of 646 that completely divides 646 are.
1, 2, 17, 19, 34, 38, 323, 646
Divisors of 688 :
The positive integer divisors of 688 that completely divides 688 are.
1, 2, 4, 8, 16, 43, 86, 172, 344, 688
Divisors of 987 :
The positive integer divisors of 987 that completely divides 987 are.
1, 3, 7, 21, 47, 141, 329, 987
GCD of numbers is the greatest common divisor
So, the GCD (646, 688, 987) = 1.
Given numbers are 646, 688, 987
The list of prime factors of all numbers are
Prime factors of 646 are 2 x 17 x 19
Prime factors of 688 are 2 x 2 x 2 x 2 x 43
Prime factors of 987 are 3 x 7 x 47
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 646, 688, 987 using LCM Formula
Given numbers are 646, 688, 987
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(646, 688) = 222224
GCD(646, 688) = ( 646 x 688 ) / 222224
= 646 / 688
= 646
Step2:
LCM(2, 987) = 1974
GCD(2, 987) = ( 2 x 987 ) / 1974
= 2 / 987
= 2
So, Greatest Common Divisor of 646, 688, 987 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 646, 688, 987
Given numbers are 646, 688, 987
The greatest common divisor of numbers 646, 688, 987 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 646, 688, 987 is 1.
FAQs on GCD of 646, 688, 987 Calculator
1. What is the GCD of 646, 688, 987?
GCD of given numbers 646, 688, 987 is 1
2. How to calculate the greatest common divisor of 646, 688, 987?
We can find the highest common divisor of 646, 688, 987 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 646, 688, 987 i.e 1.
3. How can I use the GCD of 646, 688, 987Calculator?
Out the numbers 646, 688, 987 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.