GCD of 921, 245, 540, 689 Calculator

Given Input numbers are 921, 245, 540, 689

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

Divisors of 921 :

The positive integer divisors of 921 that completely divides 921 are.

1, 3, 307, 921

Divisors of 245 :

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

1, 5, 7, 35, 49, 245

Divisors of 540 :

The positive integer divisors of 540 that completely divides 540 are.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540

Divisors of 689 :

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

1, 13, 53, 689

GCD of numbers is the greatest common divisor

So, the GCD (921, 245, 540, 689) = 1.

Given numbers are 921, 245, 540, 689

The list of prime factors of all numbers are

Prime factors of 921 are 3 x 307

Prime factors of 245 are 5 x 7 x 7

Prime factors of 540 are 2 x 2 x 3 x 3 x 3 x 5

Prime factors of 689 are 13 x 53

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

Given numbers are 921, 245, 540, 689

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

Apply this formula for all numbers.

Step1:

LCM(921, 245) = 225645

GCD(921, 245) = ( 921 x 245 ) / 225645

= 921 / 245

= 921

Step2:

LCM(1, 540) = 540

GCD(1, 540) = ( 1 x 540 ) / 540

= 1 / 540

= 1

Step3:

LCM(1, 689) = 689

GCD(1, 689) = ( 1 x 689 ) / 689

= 1 / 689

= 1

So, Greatest Common Divisor of 921, 245, 540, 689 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 392, 931, 470, 734
• GCD of 231, 624, 952, 427
• GCD of 123, 343, 977, 167
• GCD of 844, 221, 538, 900
• GCD of 827, 604, 768, 214

Given numbers are 921, 245, 540, 689
The greatest common divisor of numbers 921, 245, 540, 689 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 921, 245, 540, 689 is 1.

1. What is the GCD of 921, 245, 540, 689?

GCD of given numbers 921, 245, 540, 689 is 1

2. How to calculate the greatest common divisor of 921, 245, 540, 689?

We can find the highest common divisor of 921, 245, 540, 689 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 921, 245, 540, 689 i.e 1.

3. How can I use the GCD of 921, 245, 540, 689Calculator?

Out the numbers 921, 245, 540, 689 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.