GCD of 861, 349, 880, 980 Calculator

Given Input numbers are 861, 349, 880, 980

In the factoring method, we have to find the divisors of all numbers

Divisors of 861 :

The positive integer divisors of 861 that completely divides 861 are.

1, 3, 7, 21, 41, 123, 287, 861

Divisors of 349 :

The positive integer divisors of 349 that completely divides 349 are.

1, 349

Divisors of 880 :

The positive integer divisors of 880 that completely divides 880 are.

1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880

Divisors of 980 :

The positive integer divisors of 980 that completely divides 980 are.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980

GCD of numbers is the greatest common divisor

So, the GCD (861, 349, 880, 980) = 1.

Given numbers are 861, 349, 880, 980

The list of prime factors of all numbers are

Prime factors of 861 are 3 x 7 x 41

Prime factors of 349 are 349

Prime factors of 880 are 2 x 2 x 2 x 2 x 5 x 11

Prime factors of 980 are 2 x 2 x 5 x 7 x 7

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

Given numbers are 861, 349, 880, 980

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(861, 349) = 300489

GCD(861, 349) = ( 861 x 349 ) / 300489

= 861 / 349

= 861

Step2:

LCM(1, 880) = 880

GCD(1, 880) = ( 1 x 880 ) / 880

= 1 / 880

= 1

Step3:

LCM(1, 980) = 980

GCD(1, 980) = ( 1 x 980 ) / 980

= 1 / 980

= 1

So, Greatest Common Divisor of 861, 349, 880, 980 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 562, 955, 955, 656
• GCD of 648, 986, 953, 627
• GCD of 955, 718, 298, 131
• GCD of 800, 130, 168, 268
• GCD of 488, 568, 278, 124

Given numbers are 861, 349, 880, 980
The greatest common divisor of numbers 861, 349, 880, 980 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 861, 349, 880, 980 is 1.

1. What is the GCD of 861, 349, 880, 980?

GCD of given numbers 861, 349, 880, 980 is 1

2. How to calculate the greatest common divisor of 861, 349, 880, 980?

We can find the highest common divisor of 861, 349, 880, 980 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 861, 349, 880, 980 i.e 1.

3. How can I use the GCD of 861, 349, 880, 980Calculator?

Out the numbers 861, 349, 880, 980 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.