GCD of 390, 965, 788, 621 Calculator

Given Input numbers are 390, 965, 788, 621

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

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 965 :

The positive integer divisors of 965 that completely divides 965 are.

1, 5, 193, 965

Divisors of 788 :

The positive integer divisors of 788 that completely divides 788 are.

1, 2, 4, 197, 394, 788

Divisors of 621 :

The positive integer divisors of 621 that completely divides 621 are.

1, 3, 9, 23, 27, 69, 207, 621

GCD of numbers is the greatest common divisor

So, the GCD (390, 965, 788, 621) = 1.

Given numbers are 390, 965, 788, 621

The list of prime factors of all numbers are

Prime factors of 390 are 2 x 3 x 5 x 13

Prime factors of 965 are 5 x 193

Prime factors of 788 are 2 x 2 x 197

Prime factors of 621 are 3 x 3 x 3 x 23

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

Given numbers are 390, 965, 788, 621

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

Apply this formula for all numbers.

Step1:

LCM(390, 965) = 75270

GCD(390, 965) = ( 390 x 965 ) / 75270

= 390 / 965

= 390

Step2:

LCM(5, 788) = 3940

GCD(5, 788) = ( 5 x 788 ) / 3940

= 5 / 788

= 5

Step3:

LCM(1, 621) = 621

GCD(1, 621) = ( 1 x 621 ) / 621

= 1 / 621

= 1

So, Greatest Common Divisor of 390, 965, 788, 621 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 699, 496, 193, 293
• GCD of 713, 671, 500, 539
• GCD of 619, 369, 512, 356
• GCD of 427, 479, 362, 212
• GCD of 631, 372, 204, 976

Given numbers are 390, 965, 788, 621
The greatest common divisor of numbers 390, 965, 788, 621 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 390, 965, 788, 621 is 1.

1. What is the GCD of 390, 965, 788, 621?

GCD of given numbers 390, 965, 788, 621 is 1

2. How to calculate the greatest common divisor of 390, 965, 788, 621?

We can find the highest common divisor of 390, 965, 788, 621 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 390, 965, 788, 621 i.e 1.

3. How can I use the GCD of 390, 965, 788, 621Calculator?

Out the numbers 390, 965, 788, 621 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.