GCD of 821, 765, 760, 661 Calculator

Given Input numbers are 821, 765, 760, 661

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

Divisors of 821 :

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

1, 821

Divisors of 765 :

The positive integer divisors of 765 that completely divides 765 are.

1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765

Divisors of 760 :

The positive integer divisors of 760 that completely divides 760 are.

1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760

Divisors of 661 :

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

1, 661

GCD of numbers is the greatest common divisor

So, the GCD (821, 765, 760, 661) = 1.

Given numbers are 821, 765, 760, 661

The list of prime factors of all numbers are

Prime factors of 821 are 821

Prime factors of 765 are 3 x 3 x 5 x 17

Prime factors of 760 are 2 x 2 x 2 x 5 x 19

Prime factors of 661 are 661

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

Given numbers are 821, 765, 760, 661

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

Apply this formula for all numbers.

Step1:

LCM(821, 765) = 628065

GCD(821, 765) = ( 821 x 765 ) / 628065

= 821 / 765

= 821

Step2:

LCM(1, 760) = 760

GCD(1, 760) = ( 1 x 760 ) / 760

= 1 / 760

= 1

Step3:

LCM(1, 661) = 661

GCD(1, 661) = ( 1 x 661 ) / 661

= 1 / 661

= 1

So, Greatest Common Divisor of 821, 765, 760, 661 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 285, 965, 807, 676
• GCD of 198, 478, 120, 141
• GCD of 641, 788, 784, 838
• GCD of 609, 219, 220, 920
• GCD of 841, 318, 695, 489

Given numbers are 821, 765, 760, 661
The greatest common divisor of numbers 821, 765, 760, 661 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 765, 760, 661 is 1.

1. What is the GCD of 821, 765, 760, 661?

GCD of given numbers 821, 765, 760, 661 is 1

2. How to calculate the greatest common divisor of 821, 765, 760, 661?

We can find the highest common divisor of 821, 765, 760, 661 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 821, 765, 760, 661 i.e 1.

3. How can I use the GCD of 821, 765, 760, 661Calculator?

Out the numbers 821, 765, 760, 661 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.