GCD of 389, 649, 81 Calculator

Given Input numbers are 389, 649, 81

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

Divisors of 389 :

The positive integer divisors of 389 that completely divides 389 are.

1, 389

Divisors of 649 :

The positive integer divisors of 649 that completely divides 649 are.

1, 11, 59, 649

Divisors of 81 :

The positive integer divisors of 81 that completely divides 81 are.

1, 3, 9, 27, 81

GCD of numbers is the greatest common divisor

So, the GCD (389, 649, 81) = 1.

Given numbers are 389, 649, 81

The list of prime factors of all numbers are

Prime factors of 389 are 389

Prime factors of 649 are 11 x 59

Prime factors of 81 are 3 x 3 x 3 x 3

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

Given numbers are 389, 649, 81

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

Apply this formula for all numbers.

Step1:

LCM(389, 649) = 252461

GCD(389, 649) = ( 389 x 649 ) / 252461

= 389 / 649

= 389

Step2:

LCM(1, 81) = 81

GCD(1, 81) = ( 1 x 81 ) / 81

= 1 / 81

= 1

So, Greatest Common Divisor of 389, 649, 81 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 551, 552, 55
• GCD of 601, 882, 63
• GCD of 630, 998, 91
• GCD of 916, 640, 84
• GCD of 314, 985, 37

Given numbers are 389, 649, 81
The greatest common divisor of numbers 389, 649, 81 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 389, 649, 81 is 1.

1. What is the GCD of 389, 649, 81?

GCD of given numbers 389, 649, 81 is 1

2. How to calculate the greatest common divisor of 389, 649, 81?

We can find the highest common divisor of 389, 649, 81 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 389, 649, 81 i.e 1.

3. How can I use the GCD of 389, 649, 81Calculator?

Out the numbers 389, 649, 81 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.