GCD of 821, 130, 666, 991 Calculator

Given Input numbers are 821, 130, 666, 991

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

Divisors of 821 :

The positive integer divisors of 821 that completely divides 821 are.

1, 821

Divisors of 130 :

The positive integer divisors of 130 that completely divides 130 are.

1, 2, 5, 10, 13, 26, 65, 130

Divisors of 666 :

The positive integer divisors of 666 that completely divides 666 are.

1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666

Divisors of 991 :

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

1, 991

GCD of numbers is the greatest common divisor

So, the GCD (821, 130, 666, 991) = 1.

Given numbers are 821, 130, 666, 991

The list of prime factors of all numbers are

Prime factors of 821 are 821

Prime factors of 130 are 2 x 5 x 13

Prime factors of 666 are 2 x 3 x 3 x 37

Prime factors of 991 are 991

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

Given numbers are 821, 130, 666, 991

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

Apply this formula for all numbers.

Step1:

LCM(821, 130) = 106730

GCD(821, 130) = ( 821 x 130 ) / 106730

= 821 / 130

= 821

Step2:

LCM(1, 666) = 666

GCD(1, 666) = ( 1 x 666 ) / 666

= 1 / 666

= 1

Step3:

LCM(1, 991) = 991

GCD(1, 991) = ( 1 x 991 ) / 991

= 1 / 991

= 1

So, Greatest Common Divisor of 821, 130, 666, 991 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 343, 139, 677, 692
• GCD of 307, 482, 595, 374
• GCD of 252, 944, 521, 703
• GCD of 652, 428, 664, 283
• GCD of 383, 451, 393, 235

Given numbers are 821, 130, 666, 991
The greatest common divisor of numbers 821, 130, 666, 991 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 130, 666, 991 is 1.

1. What is the GCD of 821, 130, 666, 991?

GCD of given numbers 821, 130, 666, 991 is 1

2. How to calculate the greatest common divisor of 821, 130, 666, 991?

We can find the highest common divisor of 821, 130, 666, 991 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 821, 130, 666, 991 i.e 1.

3. How can I use the GCD of 821, 130, 666, 991Calculator?

Out the numbers 821, 130, 666, 991 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.