GCD of 981, 956, 442, 642 Calculator

Given Input numbers are 981, 956, 442, 642

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 956 :

The positive integer divisors of 956 that completely divides 956 are.

1, 2, 4, 239, 478, 956

Divisors of 442 :

The positive integer divisors of 442 that completely divides 442 are.

1, 2, 13, 17, 26, 34, 221, 442

Divisors of 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

GCD of numbers is the greatest common divisor

So, the GCD (981, 956, 442, 642) = 1.

Given numbers are 981, 956, 442, 642

The list of prime factors of all numbers are

Prime factors of 981 are 3 x 3 x 109

Prime factors of 956 are 2 x 2 x 239

Prime factors of 442 are 2 x 13 x 17

Prime factors of 642 are 2 x 3 x 107

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

Given numbers are 981, 956, 442, 642

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

Apply this formula for all numbers.

Step1:

LCM(981, 956) = 937836

GCD(981, 956) = ( 981 x 956 ) / 937836

= 981 / 956

= 981

Step2:

LCM(1, 442) = 442

GCD(1, 442) = ( 1 x 442 ) / 442

= 1 / 442

= 1

Step3:

LCM(1, 642) = 642

GCD(1, 642) = ( 1 x 642 ) / 642

= 1 / 642

= 1

So, Greatest Common Divisor of 981, 956, 442, 642 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 429, 738, 990, 164
• GCD of 727, 542, 174, 352
• GCD of 520, 838, 264, 656
• GCD of 610, 100, 345, 805
• GCD of 245, 828, 438, 626

Given numbers are 981, 956, 442, 642
The greatest common divisor of numbers 981, 956, 442, 642 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 981, 956, 442, 642 is 1.

1. What is the GCD of 981, 956, 442, 642?

GCD of given numbers 981, 956, 442, 642 is 1

2. How to calculate the greatest common divisor of 981, 956, 442, 642?

We can find the highest common divisor of 981, 956, 442, 642 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, 956, 442, 642 i.e 1.

3. How can I use the GCD of 981, 956, 442, 642Calculator?

Out the numbers 981, 956, 442, 642 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.