GCD of 857, 172, 70, 997 Calculator

Given Input numbers are 857, 172, 70, 997

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

Divisors of 857

List of positive integer divisors of 857 that divides 857 without a remainder.

1, 857

Divisors of 172

List of positive integer divisors of 172 that divides 172 without a remainder.

1, 2, 4, 43, 86, 172

Divisors of 70

List of positive integer divisors of 70 that divides 70 without a remainder.

1, 2, 5, 7, 10, 14, 35, 70

Divisors of 997

List of positive integer divisors of 997 that divides 997 without a remainder.

1, 997

Greatest Common Divisior

We found the divisors of 857, 172, 70, 997 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 857, 172, 70, 997 is 1.

Therefore, GCD of numbers 857, 172, 70, 997 is 1

Given Input Data is 857, 172, 70, 997

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

Prime Factorization of 857 is 857

Prime Factorization of 172 is 2 x 2 x 43

Prime Factorization of 70 is 2 x 5 x 7

Prime Factorization of 997 is 997

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(857, 172) = 147404

GCD(857, 172) = ( 857 x 172 ) / 147404

GCD(857, 172) = 147404 / 147404

GCD(857, 172) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 70

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

LCM(1, 70) = 70

GCD(1, 70) = ( 1 x 70 ) / 70

GCD(1, 70) = 70 / 70

GCD(1, 70) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 997

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

LCM(1, 997) = 997

GCD(1, 997) = ( 1 x 997 ) / 997

GCD(1, 997) = 997 / 997

GCD(1, 997) = 1

GCD of 857, 172, 70, 997 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 587, 917, 20, 259
• GCD of 193, 597, 69, 862
• GCD of 235, 446, 74, 306
• GCD of 256, 719, 62, 148
• GCD of 941, 663, 91, 781

1. What is the GCD of 857, 172, 70, 997?

GCD of 857, 172, 70, 997 is 1

2. Where do I get the detailed procedure to find GCD of 857, 172, 70, 997?

You can find a detailed procedure to find GCD of 857, 172, 70, 997 on our page.

3. How to find GCD of 857, 172, 70, 997 on a calculator?

You can find the GCD of 857, 172, 70, 997 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.