GCD of 981, 993, 668, 647 Calculator

Given Input numbers are 981, 993, 668, 647

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

Divisors of 981 :

The positive integer divisors of 981 that completely divides 981 are.

1, 3, 9, 109, 327, 981

Divisors of 993 :

The positive integer divisors of 993 that completely divides 993 are.

1, 3, 331, 993

Divisors of 668 :

The positive integer divisors of 668 that completely divides 668 are.

1, 2, 4, 167, 334, 668

Divisors of 647 :

The positive integer divisors of 647 that completely divides 647 are.

1, 647

GCD of numbers is the greatest common divisor

So, the GCD (981, 993, 668, 647) = 1.

Given numbers are 981, 993, 668, 647

The list of prime factors of all numbers are

Prime factors of 981 are 3 x 3 x 109

Prime factors of 993 are 3 x 331

Prime factors of 668 are 2 x 2 x 167

Prime factors of 647 are 647

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

Given numbers are 981, 993, 668, 647

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

Apply this formula for all numbers.

Step1:

LCM(981, 993) = 324711

GCD(981, 993) = ( 981 x 993 ) / 324711

= 981 / 993

= 981

Step2:

LCM(3, 668) = 2004

GCD(3, 668) = ( 3 x 668 ) / 2004

= 3 / 668

= 3

Step3:

LCM(1, 647) = 647

GCD(1, 647) = ( 1 x 647 ) / 647

= 1 / 647

= 1

So, Greatest Common Divisor of 981, 993, 668, 647 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 722, 669, 751, 721
• GCD of 688, 953, 223, 508
• GCD of 545, 742, 473, 109
• GCD of 901, 874, 962, 268
• GCD of 914, 192, 163, 816

Given numbers are 981, 993, 668, 647
The greatest common divisor of numbers 981, 993, 668, 647 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 981, 993, 668, 647 is 1.

1. What is the GCD of 981, 993, 668, 647?

GCD of given numbers 981, 993, 668, 647 is 1

2. How to calculate the greatest common divisor of 981, 993, 668, 647?

We can find the highest common divisor of 981, 993, 668, 647 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 981, 993, 668, 647 i.e 1.

3. How can I use the GCD of 981, 993, 668, 647Calculator?

Out the numbers 981, 993, 668, 647 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.