GCD of 399, 861, 660, 426 Calculator

Given Input numbers are 399, 861, 660, 426

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

Divisors of 399 :

The positive integer divisors of 399 that completely divides 399 are.

1, 3, 7, 19, 21, 57, 133, 399

Divisors of 861 :

The positive integer divisors of 861 that completely divides 861 are.

1, 3, 7, 21, 41, 123, 287, 861

Divisors of 660 :

The positive integer divisors of 660 that completely divides 660 are.

1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

Divisors of 426 :

The positive integer divisors of 426 that completely divides 426 are.

1, 2, 3, 6, 71, 142, 213, 426

GCD of numbers is the greatest common divisor

So, the GCD (399, 861, 660, 426) = 3.

Given numbers are 399, 861, 660, 426

The list of prime factors of all numbers are

Prime factors of 399 are 3 x 7 x 19

Prime factors of 861 are 3 x 7 x 41

Prime factors of 660 are 2 x 2 x 3 x 5 x 11

Prime factors of 426 are 2 x 3 x 71

The highest common occurrence is 3¹

Therefore, GCD of 399, 861, 660, 426 is 3.

Given numbers are 399, 861, 660, 426

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

Apply this formula for all numbers.

Step1:

LCM(399, 861) = 16359

GCD(399, 861) = ( 399 x 861 ) / 16359

= 399 / 861

= 399

Step2:

LCM(21, 660) = 4620

GCD(21, 660) = ( 21 x 660 ) / 4620

= 21 / 660

= 21

Step3:

LCM(3, 426) = 426

GCD(3, 426) = ( 3 x 426 ) / 426

= 3 / 426

= 3

So, Greatest Common Divisor of 399, 861, 660, 426 is 3

Here are some samples of GCD of Numbers calculations.

• GCD of 441, 173, 220, 392
• GCD of 668, 794, 771, 320
• GCD of 651, 596, 390, 112
• GCD of 716, 513, 559, 931
• GCD of 436, 179, 623, 787

Given numbers are 399, 861, 660, 426
The greatest common divisor of numbers 399, 861, 660, 426 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 399, 861, 660, 426 is 3.

1. What is the GCD of 399, 861, 660, 426?

GCD of given numbers 399, 861, 660, 426 is 3

2. How to calculate the greatest common divisor of 399, 861, 660, 426?

We can find the highest common divisor of 399, 861, 660, 426 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 399, 861, 660, 426 i.e 3.

3. How can I use the GCD of 399, 861, 660, 426Calculator?

Out the numbers 399, 861, 660, 426 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.