GCD of 393, 172, 70, 965 Calculator

Given Input numbers are 393, 172, 70, 965

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

Divisors of 393

List of positive integer divisors of 393 that divides 393 without a remainder.

1, 3, 131, 393

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 965

List of positive integer divisors of 965 that divides 965 without a remainder.

1, 5, 193, 965

Greatest Common Divisior

We found the divisors of 393, 172, 70, 965 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 393, 172, 70, 965 is 1.

Therefore, GCD of numbers 393, 172, 70, 965 is 1

Given Input Data is 393, 172, 70, 965

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

Prime Factorization of 393 is 3 x 131

Prime Factorization of 172 is 2 x 2 x 43

Prime Factorization of 70 is 2 x 5 x 7

Prime Factorization of 965 is 5 x 193

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(393, 172) = 67596

GCD(393, 172) = ( 393 x 172 ) / 67596

GCD(393, 172) = 67596 / 67596

GCD(393, 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 965

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

LCM(1, 965) = 965

GCD(1, 965) = ( 1 x 965 ) / 965

GCD(1, 965) = 965 / 965

GCD(1, 965) = 1

GCD of 393, 172, 70, 965 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 615, 802, 61, 876
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• GCD of 727, 141, 24, 254
• GCD of 437, 981, 96, 986
• GCD of 444, 639, 66, 870

1. What is the GCD of 393, 172, 70, 965?

GCD of 393, 172, 70, 965 is 1

2. Where do I get the detailed procedure to find GCD of 393, 172, 70, 965?

You can find a detailed procedure to find GCD of 393, 172, 70, 965 on our page.

3. How to find GCD of 393, 172, 70, 965 on a calculator?

You can find the GCD of 393, 172, 70, 965 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.