GCD of 393, 955, 780, 978 Calculator

Given Input numbers are 393, 955, 780, 978

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

Divisors of 393 :

The positive integer divisors of 393 that completely divides 393 are.

1, 3, 131, 393

Divisors of 955 :

The positive integer divisors of 955 that completely divides 955 are.

1, 5, 191, 955

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 978 :

The positive integer divisors of 978 that completely divides 978 are.

1, 2, 3, 6, 163, 326, 489, 978

GCD of numbers is the greatest common divisor

So, the GCD (393, 955, 780, 978) = 1.

Given numbers are 393, 955, 780, 978

The list of prime factors of all numbers are

Prime factors of 393 are 3 x 131

Prime factors of 955 are 5 x 191

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

Prime factors of 978 are 2 x 3 x 163

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

Given numbers are 393, 955, 780, 978

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

Apply this formula for all numbers.

Step1:

LCM(393, 955) = 375315

GCD(393, 955) = ( 393 x 955 ) / 375315

= 393 / 955

= 393

Step2:

LCM(1, 780) = 780

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

= 1 / 780

= 1

Step3:

LCM(1, 978) = 978

GCD(1, 978) = ( 1 x 978 ) / 978

= 1 / 978

= 1

So, Greatest Common Divisor of 393, 955, 780, 978 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 426, 394, 276, 581
• GCD of 337, 607, 137, 289
• GCD of 750, 551, 577, 758
• GCD of 316, 156, 717, 247
• GCD of 181, 937, 490, 722

Given numbers are 393, 955, 780, 978
The greatest common divisor of numbers 393, 955, 780, 978 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 393, 955, 780, 978 is 1.

1. What is the GCD of 393, 955, 780, 978?

GCD of given numbers 393, 955, 780, 978 is 1

2. How to calculate the greatest common divisor of 393, 955, 780, 978?

We can find the highest common divisor of 393, 955, 780, 978 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 393, 955, 780, 978 i.e 1.

3. How can I use the GCD of 393, 955, 780, 978Calculator?

Out the numbers 393, 955, 780, 978 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.