GCD of 991, 988, 643, 354 Calculator

Given Input numbers are 991, 988, 643, 354

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 988 :

The positive integer divisors of 988 that completely divides 988 are.

1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988

Divisors of 643 :

The positive integer divisors of 643 that completely divides 643 are.

1, 643

Divisors of 354 :

The positive integer divisors of 354 that completely divides 354 are.

1, 2, 3, 6, 59, 118, 177, 354

GCD of numbers is the greatest common divisor

So, the GCD (991, 988, 643, 354) = 1.

Given numbers are 991, 988, 643, 354

The list of prime factors of all numbers are

Prime factors of 991 are 991

Prime factors of 988 are 2 x 2 x 13 x 19

Prime factors of 643 are 643

Prime factors of 354 are 2 x 3 x 59

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

Given numbers are 991, 988, 643, 354

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

Apply this formula for all numbers.

Step1:

LCM(991, 988) = 979108

GCD(991, 988) = ( 991 x 988 ) / 979108

= 991 / 988

= 991

Step2:

LCM(1, 643) = 643

GCD(1, 643) = ( 1 x 643 ) / 643

= 1 / 643

= 1

Step3:

LCM(1, 354) = 354

GCD(1, 354) = ( 1 x 354 ) / 354

= 1 / 354

= 1

So, Greatest Common Divisor of 991, 988, 643, 354 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 175, 548, 335, 909
• GCD of 255, 120, 535, 645
• GCD of 607, 485, 421, 895
• GCD of 186, 564, 547, 578
• GCD of 144, 349, 797, 469

Given numbers are 991, 988, 643, 354
The greatest common divisor of numbers 991, 988, 643, 354 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 991, 988, 643, 354 is 1.

1. What is the GCD of 991, 988, 643, 354?

GCD of given numbers 991, 988, 643, 354 is 1

2. How to calculate the greatest common divisor of 991, 988, 643, 354?

We can find the highest common divisor of 991, 988, 643, 354 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, 988, 643, 354 i.e 1.

3. How can I use the GCD of 991, 988, 643, 354Calculator?

Out the numbers 991, 988, 643, 354 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.