GCD of 661, 165, 534, 821 Calculator

Given Input numbers are 661, 165, 534, 821

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

Divisors of 661 :

The positive integer divisors of 661 that completely divides 661 are.

1, 661

Divisors of 165 :

The positive integer divisors of 165 that completely divides 165 are.

1, 3, 5, 11, 15, 33, 55, 165

Divisors of 534 :

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

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

Divisors of 821 :

The positive integer divisors of 821 that completely divides 821 are.

1, 821

GCD of numbers is the greatest common divisor

So, the GCD (661, 165, 534, 821) = 1.

Given numbers are 661, 165, 534, 821

The list of prime factors of all numbers are

Prime factors of 661 are 661

Prime factors of 165 are 3 x 5 x 11

Prime factors of 534 are 2 x 3 x 89

Prime factors of 821 are 821

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

Given numbers are 661, 165, 534, 821

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

Apply this formula for all numbers.

Step1:

LCM(661, 165) = 109065

GCD(661, 165) = ( 661 x 165 ) / 109065

= 661 / 165

= 661

Step2:

LCM(1, 534) = 534

GCD(1, 534) = ( 1 x 534 ) / 534

= 1 / 534

= 1

Step3:

LCM(1, 821) = 821

GCD(1, 821) = ( 1 x 821 ) / 821

= 1 / 821

= 1

So, Greatest Common Divisor of 661, 165, 534, 821 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 743, 311, 841, 772
• GCD of 855, 547, 750, 477
• GCD of 765, 217, 874, 695
• GCD of 657, 543, 210, 944
• GCD of 575, 262, 999, 410

Given numbers are 661, 165, 534, 821
The greatest common divisor of numbers 661, 165, 534, 821 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 661, 165, 534, 821 is 1.

1. What is the GCD of 661, 165, 534, 821?

GCD of given numbers 661, 165, 534, 821 is 1

2. How to calculate the greatest common divisor of 661, 165, 534, 821?

We can find the highest common divisor of 661, 165, 534, 821 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 661, 165, 534, 821 i.e 1.

3. How can I use the GCD of 661, 165, 534, 821Calculator?

Out the numbers 661, 165, 534, 821 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.