GCD of 642, 857, 965 Calculator

Given Input numbers are 642, 857, 965

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 642

List of positive integer divisors of 642 that divides 642 without a remainder.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 857

List of positive integer divisors of 857 that divides 857 without a remainder.

1, 857

Divisors of 965

List of positive integer divisors of 965 that divides 965 without a remainder.

1, 5, 193, 965

Greatest Common Divisior

We found the divisors of 642, 857, 965 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 642, 857, 965 is 1.

Therefore, GCD of numbers 642, 857, 965 is 1

Given Input Data is 642, 857, 965

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 857 is 857

Prime Factorization of 965 is 5 x 193

The above numbers do not have any common prime factor. So GCD is 1

Step1:

Let's calculate the GCD of first two numbers

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(642, 857) = 550194

GCD(642, 857) = ( 642 x 857 ) / 550194

GCD(642, 857) = 550194 / 550194

GCD(642, 857) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 965

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 965) = 965

GCD(1, 965) = ( 1 x 965 ) / 965

GCD(1, 965) = 965 / 965

GCD(1, 965) = 1

GCD of 642, 857, 965 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 619, 852, 241
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• GCD of 915, 156, 443
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• GCD of 688, 901, 243

1. What is the GCD of 642, 857, 965?

GCD of 642, 857, 965 is 1

2. Where do I get the detailed procedure to find GCD of 642, 857, 965?

You can find a detailed procedure to find GCD of 642, 857, 965 on our page.

3. How to find GCD of 642, 857, 965 on a calculator?

You can find the GCD of 642, 857, 965 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.