GCD of 129, 817, 197, 980 Calculator

Given Input numbers are 129, 817, 197, 980

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

Divisors of 129 :

The positive integer divisors of 129 that completely divides 129 are.

1, 3, 43, 129

Divisors of 817 :

The positive integer divisors of 817 that completely divides 817 are.

1, 19, 43, 817

Divisors of 197 :

The positive integer divisors of 197 that completely divides 197 are.

1, 197

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 (129, 817, 197, 980) = 1.

Given numbers are 129, 817, 197, 980

The list of prime factors of all numbers are

Prime factors of 129 are 3 x 43

Prime factors of 817 are 19 x 43

Prime factors of 197 are 197

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 129, 817, 197, 980

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

Apply this formula for all numbers.

Step1:

LCM(129, 817) = 2451

GCD(129, 817) = ( 129 x 817 ) / 2451

= 129 / 817

= 129

Step2:

LCM(43, 197) = 8471

GCD(43, 197) = ( 43 x 197 ) / 8471

= 43 / 197

= 43

Step3:

LCM(1, 980) = 980

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

= 1 / 980

= 1

So, Greatest Common Divisor of 129, 817, 197, 980 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 959, 111, 614, 888
• GCD of 550, 507, 605, 903
• GCD of 590, 371, 830, 249
• GCD of 588, 895, 281, 534
• GCD of 340, 342, 365, 497

Given numbers are 129, 817, 197, 980
The greatest common divisor of numbers 129, 817, 197, 980 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 129, 817, 197, 980 is 1.

1. What is the GCD of 129, 817, 197, 980?

GCD of given numbers 129, 817, 197, 980 is 1

2. How to calculate the greatest common divisor of 129, 817, 197, 980?

We can find the highest common divisor of 129, 817, 197, 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 129, 817, 197, 980 i.e 1.

3. How can I use the GCD of 129, 817, 197, 980Calculator?

Out the numbers 129, 817, 197, 980 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.