GCD of 390, 147, 663, 129 Calculator

Given Input numbers are 390, 147, 663, 129

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 147 :

The positive integer divisors of 147 that completely divides 147 are.

1, 3, 7, 21, 49, 147

Divisors of 663 :

The positive integer divisors of 663 that completely divides 663 are.

1, 3, 13, 17, 39, 51, 221, 663

Divisors of 129 :

The positive integer divisors of 129 that completely divides 129 are.

1, 3, 43, 129

GCD of numbers is the greatest common divisor

So, the GCD (390, 147, 663, 129) = 3.

Given numbers are 390, 147, 663, 129

The list of prime factors of all numbers are

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

Prime factors of 147 are 3 x 7 x 7

Prime factors of 663 are 3 x 13 x 17

Prime factors of 129 are 3 x 43

The highest common occurrence is 3¹

Therefore, GCD of 390, 147, 663, 129 is 3.

Given numbers are 390, 147, 663, 129

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

Apply this formula for all numbers.

Step1:

LCM(390, 147) = 19110

GCD(390, 147) = ( 390 x 147 ) / 19110

= 390 / 147

= 390

Step2:

LCM(3, 663) = 663

GCD(3, 663) = ( 3 x 663 ) / 663

= 3 / 663

= 3

Step3:

LCM(3, 129) = 129

GCD(3, 129) = ( 3 x 129 ) / 129

= 3 / 129

= 3

So, Greatest Common Divisor of 390, 147, 663, 129 is 3

Here are some samples of GCD of Numbers calculations.

• GCD of 819, 297, 968, 638
• GCD of 546, 185, 646, 334
• GCD of 827, 177, 403, 920
• GCD of 440, 555, 316, 576
• GCD of 379, 409, 624, 597

Given numbers are 390, 147, 663, 129
The greatest common divisor of numbers 390, 147, 663, 129 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 390, 147, 663, 129 is 3.

1. What is the GCD of 390, 147, 663, 129?

GCD of given numbers 390, 147, 663, 129 is 3

2. How to calculate the greatest common divisor of 390, 147, 663, 129?

We can find the highest common divisor of 390, 147, 663, 129 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, 147, 663, 129 i.e 3.

3. How can I use the GCD of 390, 147, 663, 129Calculator?

Out the numbers 390, 147, 663, 129 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.