GCD of 831, 121, 655, 438 Calculator

Given Input numbers are 831, 121, 655, 438

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

Divisors of 831 :

The positive integer divisors of 831 that completely divides 831 are.

1, 3, 277, 831

Divisors of 121 :

The positive integer divisors of 121 that completely divides 121 are.

1, 11, 121

Divisors of 655 :

The positive integer divisors of 655 that completely divides 655 are.

1, 5, 131, 655

Divisors of 438 :

The positive integer divisors of 438 that completely divides 438 are.

1, 2, 3, 6, 73, 146, 219, 438

GCD of numbers is the greatest common divisor

So, the GCD (831, 121, 655, 438) = 1.

Given numbers are 831, 121, 655, 438

The list of prime factors of all numbers are

Prime factors of 831 are 3 x 277

Prime factors of 121 are 11 x 11

Prime factors of 655 are 5 x 131

Prime factors of 438 are 2 x 3 x 73

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

Given numbers are 831, 121, 655, 438

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

Apply this formula for all numbers.

Step1:

LCM(831, 121) = 100551

GCD(831, 121) = ( 831 x 121 ) / 100551

= 831 / 121

= 831

Step2:

LCM(1, 655) = 655

GCD(1, 655) = ( 1 x 655 ) / 655

= 1 / 655

= 1

Step3:

LCM(1, 438) = 438

GCD(1, 438) = ( 1 x 438 ) / 438

= 1 / 438

= 1

So, Greatest Common Divisor of 831, 121, 655, 438 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 768, 713, 925, 708
• GCD of 703, 254, 387, 423
• GCD of 771, 804, 166, 695
• GCD of 430, 254, 997, 146
• GCD of 454, 397, 389, 604

Given numbers are 831, 121, 655, 438
The greatest common divisor of numbers 831, 121, 655, 438 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 831, 121, 655, 438 is 1.

1. What is the GCD of 831, 121, 655, 438?

GCD of given numbers 831, 121, 655, 438 is 1

2. How to calculate the greatest common divisor of 831, 121, 655, 438?

We can find the highest common divisor of 831, 121, 655, 438 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 831, 121, 655, 438 i.e 1.

3. How can I use the GCD of 831, 121, 655, 438Calculator?

Out the numbers 831, 121, 655, 438 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.