GCD of 385, 639, 670, 331 Calculator

Given Input numbers are 385, 639, 670, 331

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

Divisors of 385

List of positive integer divisors of 385 that divides 385 without a remainder.

1, 5, 7, 11, 35, 55, 77, 385

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Divisors of 670

List of positive integer divisors of 670 that divides 670 without a remainder.

1, 2, 5, 10, 67, 134, 335, 670

Divisors of 331

List of positive integer divisors of 331 that divides 331 without a remainder.

1, 331

Greatest Common Divisior

We found the divisors of 385, 639, 670, 331 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 385, 639, 670, 331 is 1.

Therefore, GCD of numbers 385, 639, 670, 331 is 1

Given Input Data is 385, 639, 670, 331

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

Prime Factorization of 385 is 5 x 7 x 11

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 670 is 2 x 5 x 67

Prime Factorization of 331 is 331

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(385, 639) = 246015

GCD(385, 639) = ( 385 x 639 ) / 246015

GCD(385, 639) = 246015 / 246015

GCD(385, 639) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 670

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

LCM(1, 670) = 670

GCD(1, 670) = ( 1 x 670 ) / 670

GCD(1, 670) = 670 / 670

GCD(1, 670) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 331

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

LCM(1, 331) = 331

GCD(1, 331) = ( 1 x 331 ) / 331

GCD(1, 331) = 331 / 331

GCD(1, 331) = 1

GCD of 385, 639, 670, 331 is 1

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1. What is the GCD of 385, 639, 670, 331?

GCD of 385, 639, 670, 331 is 1

2. Where do I get the detailed procedure to find GCD of 385, 639, 670, 331?

You can find a detailed procedure to find GCD of 385, 639, 670, 331 on our page.

3. How to find GCD of 385, 639, 670, 331 on a calculator?

You can find the GCD of 385, 639, 670, 331 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.