GCD of 245, 689, 205, 729 Calculator

Given Input numbers are 245, 689, 205, 729

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

Divisors of 245 :

The positive integer divisors of 245 that completely divides 245 are.

1, 5, 7, 35, 49, 245

Divisors of 689 :

The positive integer divisors of 689 that completely divides 689 are.

1, 13, 53, 689

Divisors of 205 :

The positive integer divisors of 205 that completely divides 205 are.

1, 5, 41, 205

Divisors of 729 :

The positive integer divisors of 729 that completely divides 729 are.

1, 3, 9, 27, 81, 243, 729

GCD of numbers is the greatest common divisor

So, the GCD (245, 689, 205, 729) = 1.

Given numbers are 245, 689, 205, 729

The list of prime factors of all numbers are

Prime factors of 245 are 5 x 7 x 7

Prime factors of 689 are 13 x 53

Prime factors of 205 are 5 x 41

Prime factors of 729 are 3 x 3 x 3 x 3 x 3 x 3

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

Given numbers are 245, 689, 205, 729

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

Apply this formula for all numbers.

Step1:

LCM(245, 689) = 168805

GCD(245, 689) = ( 245 x 689 ) / 168805

= 245 / 689

= 245

Step2:

LCM(1, 205) = 205

GCD(1, 205) = ( 1 x 205 ) / 205

= 1 / 205

= 1

Step3:

LCM(1, 729) = 729

GCD(1, 729) = ( 1 x 729 ) / 729

= 1 / 729

= 1

So, Greatest Common Divisor of 245, 689, 205, 729 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 446, 728, 594, 261
• GCD of 867, 105, 859, 460
• GCD of 982, 266, 822, 844
• GCD of 888, 160, 934, 650
• GCD of 126, 975, 865, 687

Given numbers are 245, 689, 205, 729
The greatest common divisor of numbers 245, 689, 205, 729 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 245, 689, 205, 729 is 1.

1. What is the GCD of 245, 689, 205, 729?

GCD of given numbers 245, 689, 205, 729 is 1

2. How to calculate the greatest common divisor of 245, 689, 205, 729?

We can find the highest common divisor of 245, 689, 205, 729 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 245, 689, 205, 729 i.e 1.

3. How can I use the GCD of 245, 689, 205, 729Calculator?

Out the numbers 245, 689, 205, 729 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.