GCD of 858, 371, 77, 280 Calculator

Given Input numbers are 858, 371, 77, 280

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

Divisors of 858

List of positive integer divisors of 858 that divides 858 without a remainder.

1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858

Divisors of 371

List of positive integer divisors of 371 that divides 371 without a remainder.

1, 7, 53, 371

Divisors of 77

List of positive integer divisors of 77 that divides 77 without a remainder.

1, 7, 11, 77

Divisors of 280

List of positive integer divisors of 280 that divides 280 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280

Greatest Common Divisior

We found the divisors of 858, 371, 77, 280 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 858, 371, 77, 280 is 1.

Therefore, GCD of numbers 858, 371, 77, 280 is 1

Given Input Data is 858, 371, 77, 280

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

Prime Factorization of 858 is 2 x 3 x 11 x 13

Prime Factorization of 371 is 7 x 53

Prime Factorization of 77 is 7 x 11

Prime Factorization of 280 is 2 x 2 x 2 x 5 x 7

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(858, 371) = 318318

GCD(858, 371) = ( 858 x 371 ) / 318318

GCD(858, 371) = 318318 / 318318

GCD(858, 371) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 77

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

LCM(1, 77) = 77

GCD(1, 77) = ( 1 x 77 ) / 77

GCD(1, 77) = 77 / 77

GCD(1, 77) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 280

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

LCM(1, 280) = 280

GCD(1, 280) = ( 1 x 280 ) / 280

GCD(1, 280) = 280 / 280

GCD(1, 280) = 1

GCD of 858, 371, 77, 280 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 403, 310, 57, 402
• GCD of 653, 323, 54, 192
• GCD of 108, 814, 74, 573
• GCD of 679, 685, 11, 342
• GCD of 843, 574, 81, 349

1. What is the GCD of 858, 371, 77, 280?

GCD of 858, 371, 77, 280 is 1

2. Where do I get the detailed procedure to find GCD of 858, 371, 77, 280?

You can find a detailed procedure to find GCD of 858, 371, 77, 280 on our page.

3. How to find GCD of 858, 371, 77, 280 on a calculator?

You can find the GCD of 858, 371, 77, 280 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.