GCD of 645, 989, 601, 603 Calculator

Given Input numbers are 645, 989, 601, 603

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 645

List of positive integer divisors of 645 that divides 645 without a remainder.

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

Divisors of 989

List of positive integer divisors of 989 that divides 989 without a remainder.

1, 23, 43, 989

Divisors of 601

List of positive integer divisors of 601 that divides 601 without a remainder.

1, 601

Divisors of 603

List of positive integer divisors of 603 that divides 603 without a remainder.

1, 3, 9, 67, 201, 603

Greatest Common Divisior

We found the divisors of 645, 989, 601, 603 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 645, 989, 601, 603 is 1.

Therefore, GCD of numbers 645, 989, 601, 603 is 1

Given Input Data is 645, 989, 601, 603

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 645 is 3 x 5 x 43

Prime Factorization of 989 is 23 x 43

Prime Factorization of 601 is 601

Prime Factorization of 603 is 3 x 3 x 67

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

Step1:

Let's calculate the GCD of first two numbers

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

LCM(645, 989) = 14835

GCD(645, 989) = ( 645 x 989 ) / 14835

GCD(645, 989) = 637905 / 14835

GCD(645, 989) = 43

Step2:

Here we consider the GCD from the above i.e. 43 as first number and the next as 601

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

LCM(43, 601) = 25843

GCD(43, 601) = ( 43 x 601 ) / 25843

GCD(43, 601) = 25843 / 25843

GCD(43, 601) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 603

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

LCM(1, 603) = 603

GCD(1, 603) = ( 1 x 603 ) / 603

GCD(1, 603) = 603 / 603

GCD(1, 603) = 1

GCD of 645, 989, 601, 603 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 543, 332, 651, 389
• GCD of 435, 960, 453, 764
• GCD of 899, 296, 484, 979
• GCD of 103, 394, 424, 591
• GCD of 732, 194, 293, 975

1. What is the GCD of 645, 989, 601, 603?

GCD of 645, 989, 601, 603 is 1

2. Where do I get the detailed procedure to find GCD of 645, 989, 601, 603?

You can find a detailed procedure to find GCD of 645, 989, 601, 603 on our page.

3. How to find GCD of 645, 989, 601, 603 on a calculator?

You can find the GCD of 645, 989, 601, 603 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.