GCD of 664, 180, 998, 645 Calculator

Given Input numbers are 664, 180, 998, 645

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

Divisors of 664 :

The positive integer divisors of 664 that completely divides 664 are.

1, 2, 4, 8, 83, 166, 332, 664

Divisors of 180 :

The positive integer divisors of 180 that completely divides 180 are.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180

Divisors of 998 :

The positive integer divisors of 998 that completely divides 998 are.

1, 2, 499, 998

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

1, 3, 5, 15, 43, 129, 215, 645

GCD of numbers is the greatest common divisor

So, the GCD (664, 180, 998, 645) = 1.

Given numbers are 664, 180, 998, 645

The list of prime factors of all numbers are

Prime factors of 664 are 2 x 2 x 2 x 83

Prime factors of 180 are 2 x 2 x 3 x 3 x 5

Prime factors of 998 are 2 x 499

Prime factors of 645 are 3 x 5 x 43

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

Given numbers are 664, 180, 998, 645

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

Apply this formula for all numbers.

Step1:

LCM(664, 180) = 29880

GCD(664, 180) = ( 664 x 180 ) / 29880

= 664 / 180

= 664

Step2:

LCM(4, 998) = 1996

GCD(4, 998) = ( 4 x 998 ) / 1996

= 4 / 998

= 4

Step3:

LCM(2, 645) = 1290

GCD(2, 645) = ( 2 x 645 ) / 1290

= 2 / 645

= 2

So, Greatest Common Divisor of 664, 180, 998, 645 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 729, 979, 614, 854
• GCD of 832, 202, 354, 523
• GCD of 249, 642, 560, 894
• GCD of 335, 214, 188, 302
• GCD of 266, 660, 810, 433

Given numbers are 664, 180, 998, 645
The greatest common divisor of numbers 664, 180, 998, 645 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 664, 180, 998, 645 is 1.

1. What is the GCD of 664, 180, 998, 645?

GCD of given numbers 664, 180, 998, 645 is 1

2. How to calculate the greatest common divisor of 664, 180, 998, 645?

We can find the highest common divisor of 664, 180, 998, 645 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 664, 180, 998, 645 i.e 1.

3. How can I use the GCD of 664, 180, 998, 645Calculator?

Out the numbers 664, 180, 998, 645 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.