GCD of 690, 660, 784 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 690, 660, 784 quickly. Get the easiest ways to solve the greatest common divisor of 690, 660, 784 i.e 2 in different methods as follows.
Given Input numbers are 690, 660, 784
In the factoring method, we have to find the divisors of all numbers
Divisors of 690 :
The positive integer divisors of 690 that completely divides 690 are.
1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
Divisors of 660 :
The positive integer divisors of 660 that completely divides 660 are.
1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
Divisors of 784 :
The positive integer divisors of 784 that completely divides 784 are.
1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
GCD of numbers is the greatest common divisor
So, the GCD (690, 660, 784) = 2.
Given numbers are 690, 660, 784
The list of prime factors of all numbers are
Prime factors of 690 are 2 x 3 x 5 x 23
Prime factors of 660 are 2 x 2 x 3 x 5 x 11
Prime factors of 784 are 2 x 2 x 2 x 2 x 7 x 7
The highest common occurrence is 21
Therefore, GCD of 690, 660, 784 is 2.
Steps to Calculate GCD of 690, 660, 784 using LCM Formula
Given numbers are 690, 660, 784
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(690, 660) = 15180
GCD(690, 660) = ( 690 x 660 ) / 15180
= 690 / 660
= 690
Step2:
LCM(30, 784) = 11760
GCD(30, 784) = ( 30 x 784 ) / 11760
= 30 / 784
= 30
So, Greatest Common Divisor of 690, 660, 784 is 2
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 690, 660, 784
Given numbers are 690, 660, 784
The greatest common divisor of numbers 690, 660, 784 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 660, 784 is 2.
FAQs on GCD of 690, 660, 784 Calculator
1. What is the GCD of 690, 660, 784?
GCD of given numbers 690, 660, 784 is 2
2. How to calculate the greatest common divisor of 690, 660, 784?
We can find the highest common divisor of 690, 660, 784 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 690, 660, 784 i.e 2.
3. How can I use the GCD of 690, 660, 784Calculator?
Out the numbers 690, 660, 784 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.