GCD of 991, 345, 989, 957 Calculator

Given Input numbers are 991, 345, 989, 957

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 345 :

The positive integer divisors of 345 that completely divides 345 are.

1, 3, 5, 15, 23, 69, 115, 345

Divisors of 989 :

The positive integer divisors of 989 that completely divides 989 are.

1, 23, 43, 989

Divisors of 957 :

The positive integer divisors of 957 that completely divides 957 are.

1, 3, 11, 29, 33, 87, 319, 957

GCD of numbers is the greatest common divisor

So, the GCD (991, 345, 989, 957) = 1.

Given numbers are 991, 345, 989, 957

The list of prime factors of all numbers are

Prime factors of 991 are 991

Prime factors of 345 are 3 x 5 x 23

Prime factors of 989 are 23 x 43

Prime factors of 957 are 3 x 11 x 29

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

Given numbers are 991, 345, 989, 957

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

Apply this formula for all numbers.

Step1:

LCM(991, 345) = 341895

GCD(991, 345) = ( 991 x 345 ) / 341895

= 991 / 345

= 991

Step2:

LCM(1, 989) = 989

GCD(1, 989) = ( 1 x 989 ) / 989

= 1 / 989

= 1

Step3:

LCM(1, 957) = 957

GCD(1, 957) = ( 1 x 957 ) / 957

= 1 / 957

= 1

So, Greatest Common Divisor of 991, 345, 989, 957 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 918, 109, 991, 851
• GCD of 669, 603, 931, 734
• GCD of 318, 415, 955, 823
• GCD of 433, 142, 386, 151
• GCD of 644, 666, 487, 108

Given numbers are 991, 345, 989, 957
The greatest common divisor of numbers 991, 345, 989, 957 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 991, 345, 989, 957 is 1.

1. What is the GCD of 991, 345, 989, 957?

GCD of given numbers 991, 345, 989, 957 is 1

2. How to calculate the greatest common divisor of 991, 345, 989, 957?

We can find the highest common divisor of 991, 345, 989, 957 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, 345, 989, 957 i.e 1.

3. How can I use the GCD of 991, 345, 989, 957Calculator?

Out the numbers 991, 345, 989, 957 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.