GCD of 427, 385, 70, 142 Calculator

Given Input numbers are 427, 385, 70, 142

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

Divisors of 427

List of positive integer divisors of 427 that divides 427 without a remainder.

1, 7, 61, 427

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 70

List of positive integer divisors of 70 that divides 70 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70

Divisors of 142

List of positive integer divisors of 142 that divides 142 without a remainder.

1, 2, 71, 142

Greatest Common Divisior

We found the divisors of 427, 385, 70, 142 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 427, 385, 70, 142 is 1.

Therefore, GCD of numbers 427, 385, 70, 142 is 1

Given Input Data is 427, 385, 70, 142

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

Prime Factorization of 427 is 7 x 61

Prime Factorization of 385 is 5 x 7 x 11

Prime Factorization of 70 is 2 x 5 x 7

Prime Factorization of 142 is 2 x 71

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(427, 385) = 23485

GCD(427, 385) = ( 427 x 385 ) / 23485

GCD(427, 385) = 164395 / 23485

GCD(427, 385) = 7

Step2:

Here we consider the GCD from the above i.e. 7 as first number and the next as 70

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

LCM(7, 70) = 70

GCD(7, 70) = ( 7 x 70 ) / 70

GCD(7, 70) = 490 / 70

GCD(7, 70) = 7

Step3:

Here we consider the GCD from the above i.e. 7 as first number and the next as 142

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

LCM(7, 142) = 994

GCD(7, 142) = ( 7 x 142 ) / 994

GCD(7, 142) = 994 / 994

GCD(7, 142) = 1

GCD of 427, 385, 70, 142 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 673, 490, 55, 559
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• GCD of 327, 371, 21, 623
• GCD of 457, 333, 96, 925
• GCD of 811, 796, 77, 419

1. What is the GCD of 427, 385, 70, 142?

GCD of 427, 385, 70, 142 is 1

2. Where do I get the detailed procedure to find GCD of 427, 385, 70, 142?

You can find a detailed procedure to find GCD of 427, 385, 70, 142 on our page.

3. How to find GCD of 427, 385, 70, 142 on a calculator?

You can find the GCD of 427, 385, 70, 142 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.