GCD of 981, 534, 221, 390 Calculator

Given Input numbers are 981, 534, 221, 390

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 534 :

The positive integer divisors of 534 that completely divides 534 are.

1, 2, 3, 6, 89, 178, 267, 534

Divisors of 221 :

The positive integer divisors of 221 that completely divides 221 are.

1, 13, 17, 221

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

GCD of numbers is the greatest common divisor

So, the GCD (981, 534, 221, 390) = 1.

Given numbers are 981, 534, 221, 390

The list of prime factors of all numbers are

Prime factors of 981 are 3 x 3 x 109

Prime factors of 534 are 2 x 3 x 89

Prime factors of 221 are 13 x 17

Prime factors of 390 are 2 x 3 x 5 x 13

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

Given numbers are 981, 534, 221, 390

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

Apply this formula for all numbers.

Step1:

LCM(981, 534) = 174618

GCD(981, 534) = ( 981 x 534 ) / 174618

= 981 / 534

= 981

Step2:

LCM(3, 221) = 663

GCD(3, 221) = ( 3 x 221 ) / 663

= 3 / 221

= 3

Step3:

LCM(1, 390) = 390

GCD(1, 390) = ( 1 x 390 ) / 390

= 1 / 390

= 1

So, Greatest Common Divisor of 981, 534, 221, 390 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 849, 754, 498, 924
• GCD of 903, 864, 631, 887
• GCD of 565, 147, 483, 758
• GCD of 788, 571, 908, 140
• GCD of 272, 449, 178, 919

Given numbers are 981, 534, 221, 390
The greatest common divisor of numbers 981, 534, 221, 390 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 981, 534, 221, 390 is 1.

1. What is the GCD of 981, 534, 221, 390?

GCD of given numbers 981, 534, 221, 390 is 1

2. How to calculate the greatest common divisor of 981, 534, 221, 390?

We can find the highest common divisor of 981, 534, 221, 390 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, 534, 221, 390 i.e 1.

3. How can I use the GCD of 981, 534, 221, 390Calculator?

Out the numbers 981, 534, 221, 390 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.