GCD of 661, 545, 99, 357 Calculator

Given Input numbers are 661, 545, 99, 357

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 545

List of positive integer divisors of 545 that divides 545 without a remainder.

1, 5, 109, 545

Divisors of 99

List of positive integer divisors of 99 that divides 99 without a remainder.

1, 3, 9, 11, 33, 99

Divisors of 357

List of positive integer divisors of 357 that divides 357 without a remainder.

1, 3, 7, 17, 21, 51, 119, 357

Greatest Common Divisior

We found the divisors of 661, 545, 99, 357 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 545, 99, 357 is 1.

Therefore, GCD of numbers 661, 545, 99, 357 is 1

Given Input Data is 661, 545, 99, 357

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

Prime Factorization of 661 is 661

Prime Factorization of 545 is 5 x 109

Prime Factorization of 99 is 3 x 3 x 11

Prime Factorization of 357 is 3 x 7 x 17

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, 545) = 360245

GCD(661, 545) = ( 661 x 545 ) / 360245

GCD(661, 545) = 360245 / 360245

GCD(661, 545) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 99

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

LCM(1, 99) = 99

GCD(1, 99) = ( 1 x 99 ) / 99

GCD(1, 99) = 99 / 99

GCD(1, 99) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 357

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

LCM(1, 357) = 357

GCD(1, 357) = ( 1 x 357 ) / 357

GCD(1, 357) = 357 / 357

GCD(1, 357) = 1

GCD of 661, 545, 99, 357 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 390, 632, 28, 334
• GCD of 542, 543, 17, 208
• GCD of 975, 785, 50, 865
• GCD of 312, 857, 90, 846
• GCD of 384, 237, 24, 599

1. What is the GCD of 661, 545, 99, 357?

GCD of 661, 545, 99, 357 is 1

2. Where do I get the detailed procedure to find GCD of 661, 545, 99, 357?

You can find a detailed procedure to find GCD of 661, 545, 99, 357 on our page.

3. How to find GCD of 661, 545, 99, 357 on a calculator?

You can find the GCD of 661, 545, 99, 357 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.