GCD of 991, 204, 138, 630 Calculator

Given Input numbers are 991, 204, 138, 630

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

Divisors of 991 :

The positive integer divisors of 991 that completely divides 991 are.

1, 991

Divisors of 204 :

The positive integer divisors of 204 that completely divides 204 are.

1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204

Divisors of 138 :

The positive integer divisors of 138 that completely divides 138 are.

1, 2, 3, 6, 23, 46, 69, 138

Divisors of 630 :

The positive integer divisors of 630 that completely divides 630 are.

1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630

GCD of numbers is the greatest common divisor

So, the GCD (991, 204, 138, 630) = 1.

Given numbers are 991, 204, 138, 630

The list of prime factors of all numbers are

Prime factors of 991 are 991

Prime factors of 204 are 2 x 2 x 3 x 17

Prime factors of 138 are 2 x 3 x 23

Prime factors of 630 are 2 x 3 x 3 x 5 x 7

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

Given numbers are 991, 204, 138, 630

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

Apply this formula for all numbers.

Step1:

LCM(991, 204) = 202164

GCD(991, 204) = ( 991 x 204 ) / 202164

= 991 / 204

= 991

Step2:

LCM(1, 138) = 138

GCD(1, 138) = ( 1 x 138 ) / 138

= 1 / 138

= 1

Step3:

LCM(1, 630) = 630

GCD(1, 630) = ( 1 x 630 ) / 630

= 1 / 630

= 1

So, Greatest Common Divisor of 991, 204, 138, 630 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 998, 419, 655, 959
• GCD of 737, 517, 912, 360
• GCD of 213, 207, 335, 227
• GCD of 113, 632, 324, 658
• GCD of 673, 589, 926, 883

Given numbers are 991, 204, 138, 630
The greatest common divisor of numbers 991, 204, 138, 630 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 991, 204, 138, 630 is 1.

1. What is the GCD of 991, 204, 138, 630?

GCD of given numbers 991, 204, 138, 630 is 1

2. How to calculate the greatest common divisor of 991, 204, 138, 630?

We can find the highest common divisor of 991, 204, 138, 630 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 991, 204, 138, 630 i.e 1.

3. How can I use the GCD of 991, 204, 138, 630Calculator?

Out the numbers 991, 204, 138, 630 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.