GCD of 13, 85, 87, 64 Calculator

Given Input numbers are 13, 85, 87, 64

In the factoring method, we have to find the divisors of all numbers

Divisors of 13 :

The positive integer divisors of 13 that completely divides 13 are.

1, 13

Divisors of 85 :

The positive integer divisors of 85 that completely divides 85 are.

1, 5, 17, 85

Divisors of 87 :

The positive integer divisors of 87 that completely divides 87 are.

1, 3, 29, 87

Divisors of 64 :

The positive integer divisors of 64 that completely divides 64 are.

1, 2, 4, 8, 16, 32, 64

GCD of numbers is the greatest common divisor

So, the GCD (13, 85, 87, 64) = 1.

Given numbers are 13, 85, 87, 64

The list of prime factors of all numbers are

Prime factors of 13 are 13

Prime factors of 85 are 5 x 17

Prime factors of 87 are 3 x 29

Prime factors of 64 are 2 x 2 x 2 x 2 x 2 x 2

The above numbers do not have any common prime factor. So GCD is 1

Given numbers are 13, 85, 87, 64

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(13, 85) = 1105

GCD(13, 85) = ( 13 x 85 ) / 1105

= 13 / 85

= 13

Step2:

LCM(1, 87) = 87

GCD(1, 87) = ( 1 x 87 ) / 87

= 1 / 87

= 1

Step3:

LCM(1, 64) = 64

GCD(1, 64) = ( 1 x 64 ) / 64

= 1 / 64

= 1

So, Greatest Common Divisor of 13, 85, 87, 64 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 72, 94, 91, 31
• GCD of 39, 93, 25, 10
• GCD of 10, 16, 23, 37
• GCD of 52, 11, 91, 45
• GCD of 37, 15, 42, 13

Given numbers are 13, 85, 87, 64
The greatest common divisor of numbers 13, 85, 87, 64 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 13, 85, 87, 64 is 1.

1. What is the GCD of 13, 85, 87, 64?

GCD of given numbers 13, 85, 87, 64 is 1

2. How to calculate the greatest common divisor of 13, 85, 87, 64?

We can find the highest common divisor of 13, 85, 87, 64 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 13, 85, 87, 64 i.e 1.

3. How can I use the GCD of 13, 85, 87, 64Calculator?

Out the numbers 13, 85, 87, 64 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.