GCD of 158, 661, 850, 455 Calculator

Given Input numbers are 158, 661, 850, 455

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

Divisors of 158

List of positive integer divisors of 158 that divides 158 without a remainder.

1, 2, 79, 158

Divisors of 661

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

1, 661

Divisors of 850

List of positive integer divisors of 850 that divides 850 without a remainder.

1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850

Divisors of 455

List of positive integer divisors of 455 that divides 455 without a remainder.

1, 5, 7, 13, 35, 65, 91, 455

Greatest Common Divisior

We found the divisors of 158, 661, 850, 455 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 158, 661, 850, 455 is 1.

Therefore, GCD of numbers 158, 661, 850, 455 is 1

Given Input Data is 158, 661, 850, 455

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

Prime Factorization of 158 is 2 x 79

Prime Factorization of 661 is 661

Prime Factorization of 850 is 2 x 5 x 5 x 17

Prime Factorization of 455 is 5 x 7 x 13

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(158, 661) = 104438

GCD(158, 661) = ( 158 x 661 ) / 104438

GCD(158, 661) = 104438 / 104438

GCD(158, 661) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 850

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

LCM(1, 850) = 850

GCD(1, 850) = ( 1 x 850 ) / 850

GCD(1, 850) = 850 / 850

GCD(1, 850) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 455

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

LCM(1, 455) = 455

GCD(1, 455) = ( 1 x 455 ) / 455

GCD(1, 455) = 455 / 455

GCD(1, 455) = 1

GCD of 158, 661, 850, 455 is 1

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1. What is the GCD of 158, 661, 850, 455?

GCD of 158, 661, 850, 455 is 1

2. Where do I get the detailed procedure to find GCD of 158, 661, 850, 455?

You can find a detailed procedure to find GCD of 158, 661, 850, 455 on our page.

3. How to find GCD of 158, 661, 850, 455 on a calculator?

You can find the GCD of 158, 661, 850, 455 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.