GCD of 361, 689, 780, 485 Calculator

Given Input numbers are 361, 689, 780, 485

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

Divisors of 361 :

The positive integer divisors of 361 that completely divides 361 are.

1, 19, 361

Divisors of 689 :

The positive integer divisors of 689 that completely divides 689 are.

1, 13, 53, 689

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 485 :

The positive integer divisors of 485 that completely divides 485 are.

1, 5, 97, 485

GCD of numbers is the greatest common divisor

So, the GCD (361, 689, 780, 485) = 1.

Given numbers are 361, 689, 780, 485

The list of prime factors of all numbers are

Prime factors of 361 are 19 x 19

Prime factors of 689 are 13 x 53

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

Prime factors of 485 are 5 x 97

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

Given numbers are 361, 689, 780, 485

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

Apply this formula for all numbers.

Step1:

LCM(361, 689) = 248729

GCD(361, 689) = ( 361 x 689 ) / 248729

= 361 / 689

= 361

Step2:

LCM(1, 780) = 780

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

= 1 / 780

= 1

Step3:

LCM(1, 485) = 485

GCD(1, 485) = ( 1 x 485 ) / 485

= 1 / 485

= 1

So, Greatest Common Divisor of 361, 689, 780, 485 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 156, 544, 334, 392
• GCD of 509, 999, 912, 178
• GCD of 430, 275, 602, 763
• GCD of 750, 390, 324, 310
• GCD of 727, 205, 393, 563

Given numbers are 361, 689, 780, 485
The greatest common divisor of numbers 361, 689, 780, 485 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 361, 689, 780, 485 is 1.

1. What is the GCD of 361, 689, 780, 485?

GCD of given numbers 361, 689, 780, 485 is 1

2. How to calculate the greatest common divisor of 361, 689, 780, 485?

We can find the highest common divisor of 361, 689, 780, 485 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 361, 689, 780, 485 i.e 1.

3. How can I use the GCD of 361, 689, 780, 485Calculator?

Out the numbers 361, 689, 780, 485 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.