GCD of 521, 381, 780, 869 Calculator

Given Input numbers are 521, 381, 780, 869

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

Divisors of 521 :

The positive integer divisors of 521 that completely divides 521 are.

1, 521

Divisors of 381 :

The positive integer divisors of 381 that completely divides 381 are.

1, 3, 127, 381

Divisors of 780 :

The positive integer divisors of 780 that completely divides 780 are.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

Divisors of 869 :

The positive integer divisors of 869 that completely divides 869 are.

1, 11, 79, 869

GCD of numbers is the greatest common divisor

So, the GCD (521, 381, 780, 869) = 1.

Given numbers are 521, 381, 780, 869

The list of prime factors of all numbers are

Prime factors of 521 are 521

Prime factors of 381 are 3 x 127

Prime factors of 780 are 2 x 2 x 3 x 5 x 13

Prime factors of 869 are 11 x 79

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

Given numbers are 521, 381, 780, 869

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

Apply this formula for all numbers.

Step1:

LCM(521, 381) = 198501

GCD(521, 381) = ( 521 x 381 ) / 198501

= 521 / 381

= 521

Step2:

LCM(1, 780) = 780

GCD(1, 780) = ( 1 x 780 ) / 780

= 1 / 780

= 1

Step3:

LCM(1, 869) = 869

GCD(1, 869) = ( 1 x 869 ) / 869

= 1 / 869

= 1

So, Greatest Common Divisor of 521, 381, 780, 869 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 174, 630, 422, 108
• GCD of 662, 422, 465, 371
• GCD of 740, 305, 336, 492
• GCD of 907, 807, 714, 472
• GCD of 507, 721, 628, 860

Given numbers are 521, 381, 780, 869
The greatest common divisor of numbers 521, 381, 780, 869 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 521, 381, 780, 869 is 1.

1. What is the GCD of 521, 381, 780, 869?

GCD of given numbers 521, 381, 780, 869 is 1

2. How to calculate the greatest common divisor of 521, 381, 780, 869?

We can find the highest common divisor of 521, 381, 780, 869 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 521, 381, 780, 869 i.e 1.

3. How can I use the GCD of 521, 381, 780, 869Calculator?

Out the numbers 521, 381, 780, 869 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.