GCD of 661, 140, 339, 987 Calculator

Given Input numbers are 661, 140, 339, 987

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

Divisors of 661

List of positive integer divisors of 661 that divides 661 without a remainder.

1, 661

Divisors of 140

List of positive integer divisors of 140 that divides 140 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140

Divisors of 339

List of positive integer divisors of 339 that divides 339 without a remainder.

1, 3, 113, 339

Divisors of 987

List of positive integer divisors of 987 that divides 987 without a remainder.

1, 3, 7, 21, 47, 141, 329, 987

Greatest Common Divisior

We found the divisors of 661, 140, 339, 987 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 140, 339, 987 is 1.

Therefore, GCD of numbers 661, 140, 339, 987 is 1

Given Input Data is 661, 140, 339, 987

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

Prime Factorization of 661 is 661

Prime Factorization of 140 is 2 x 2 x 5 x 7

Prime Factorization of 339 is 3 x 113

Prime Factorization of 987 is 3 x 7 x 47

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(661, 140) = 92540

GCD(661, 140) = ( 661 x 140 ) / 92540

GCD(661, 140) = 92540 / 92540

GCD(661, 140) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 339

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

LCM(1, 339) = 339

GCD(1, 339) = ( 1 x 339 ) / 339

GCD(1, 339) = 339 / 339

GCD(1, 339) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 987

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

LCM(1, 987) = 987

GCD(1, 987) = ( 1 x 987 ) / 987

GCD(1, 987) = 987 / 987

GCD(1, 987) = 1

GCD of 661, 140, 339, 987 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 563, 966, 680, 924
• GCD of 489, 244, 940, 688
• GCD of 598, 753, 125, 695
• GCD of 235, 470, 577, 914
• GCD of 137, 562, 710, 942

1. What is the GCD of 661, 140, 339, 987?

GCD of 661, 140, 339, 987 is 1

2. Where do I get the detailed procedure to find GCD of 661, 140, 339, 987?

You can find a detailed procedure to find GCD of 661, 140, 339, 987 on our page.

3. How to find GCD of 661, 140, 339, 987 on a calculator?

You can find the GCD of 661, 140, 339, 987 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.