GCD of 770, 691, 21, 170 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 770, 691, 21, 170 quickly. Get the easiest ways to solve the greatest common divisor of 770, 691, 21, 170 i.e 1 in different methods as follows.
Given Input numbers are 770, 691, 21, 170
In the factoring method, we have to find the divisors of all numbers
Divisors of 770 :
The positive integer divisors of 770 that completely divides 770 are.
1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
Divisors of 691 :
The positive integer divisors of 691 that completely divides 691 are.
1, 691
Divisors of 21 :
The positive integer divisors of 21 that completely divides 21 are.
1, 3, 7, 21
Divisors of 170 :
The positive integer divisors of 170 that completely divides 170 are.
1, 2, 5, 10, 17, 34, 85, 170
GCD of numbers is the greatest common divisor
So, the GCD (770, 691, 21, 170) = 1.
Given numbers are 770, 691, 21, 170
The list of prime factors of all numbers are
Prime factors of 770 are 2 x 5 x 7 x 11
Prime factors of 691 are 691
Prime factors of 21 are 3 x 7
Prime factors of 170 are 2 x 5 x 17
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 770, 691, 21, 170 using LCM Formula
Given numbers are 770, 691, 21, 170
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(770, 691) = 532070
GCD(770, 691) = ( 770 x 691 ) / 532070
= 770 / 691
= 770
Step2:
LCM(1, 21) = 21
GCD(1, 21) = ( 1 x 21 ) / 21
= 1 / 21
= 1
Step3:
LCM(1, 170) = 170
GCD(1, 170) = ( 1 x 170 ) / 170
= 1 / 170
= 1
So, Greatest Common Divisor of 770, 691, 21, 170 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 770, 691, 21, 170
Given numbers are 770, 691, 21, 170
The greatest common divisor of numbers 770, 691, 21, 170 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 770, 691, 21, 170 is 1.
FAQs on GCD of 770, 691, 21, 170 Calculator
1. What is the GCD of 770, 691, 21, 170?
GCD of given numbers 770, 691, 21, 170 is 1
2. How to calculate the greatest common divisor of 770, 691, 21, 170?
We can find the highest common divisor of 770, 691, 21, 170 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 770, 691, 21, 170 i.e 1.
3. How can I use the GCD of 770, 691, 21, 170Calculator?
Out the numbers 770, 691, 21, 170 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.