GCD of 644, 618, 76, 782 Calculator

Given Input numbers are 644, 618, 76, 782

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

Divisors of 644 :

The positive integer divisors of 644 that completely divides 644 are.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 618 :

The positive integer divisors of 618 that completely divides 618 are.

1, 2, 3, 6, 103, 206, 309, 618

Divisors of 76 :

The positive integer divisors of 76 that completely divides 76 are.

1, 2, 4, 19, 38, 76

Divisors of 782 :

The positive integer divisors of 782 that completely divides 782 are.

1, 2, 17, 23, 34, 46, 391, 782

GCD of numbers is the greatest common divisor

So, the GCD (644, 618, 76, 782) = 2.

Given numbers are 644, 618, 76, 782

The list of prime factors of all numbers are

Prime factors of 644 are 2 x 2 x 7 x 23

Prime factors of 618 are 2 x 3 x 103

Prime factors of 76 are 2 x 2 x 19

Prime factors of 782 are 2 x 17 x 23

The highest common occurrence is 2¹

Therefore, GCD of 644, 618, 76, 782 is 2.

Given numbers are 644, 618, 76, 782

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

Apply this formula for all numbers.

Step1:

LCM(644, 618) = 198996

GCD(644, 618) = ( 644 x 618 ) / 198996

= 644 / 618

= 644

Step2:

LCM(2, 76) = 76

GCD(2, 76) = ( 2 x 76 ) / 76

= 2 / 76

= 2

Step3:

LCM(2, 782) = 782

GCD(2, 782) = ( 2 x 782 ) / 782

= 2 / 782

= 2

So, Greatest Common Divisor of 644, 618, 76, 782 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 336, 284, 23, 688
• GCD of 498, 512, 43, 712
• GCD of 290, 748, 81, 827
• GCD of 200, 535, 96, 207
• GCD of 216, 489, 92, 671

Given numbers are 644, 618, 76, 782
The greatest common divisor of numbers 644, 618, 76, 782 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 644, 618, 76, 782 is 2.

1. What is the GCD of 644, 618, 76, 782?

GCD of given numbers 644, 618, 76, 782 is 2

2. How to calculate the greatest common divisor of 644, 618, 76, 782?

We can find the highest common divisor of 644, 618, 76, 782 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 644, 618, 76, 782 i.e 2.

3. How can I use the GCD of 644, 618, 76, 782Calculator?

Out the numbers 644, 618, 76, 782 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.