GCD of 840, 370, 563, 645 Calculator

Given Input numbers are 840, 370, 563, 645

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

Divisors of 840 :

The positive integer divisors of 840 that completely divides 840 are.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

Divisors of 370 :

The positive integer divisors of 370 that completely divides 370 are.

1, 2, 5, 10, 37, 74, 185, 370

Divisors of 563 :

The positive integer divisors of 563 that completely divides 563 are.

1, 563

Divisors of 645 :

The positive integer divisors of 645 that completely divides 645 are.

1, 3, 5, 15, 43, 129, 215, 645

GCD of numbers is the greatest common divisor

So, the GCD (840, 370, 563, 645) = 1.

Given numbers are 840, 370, 563, 645

The list of prime factors of all numbers are

Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7

Prime factors of 370 are 2 x 5 x 37

Prime factors of 563 are 563

Prime factors of 645 are 3 x 5 x 43

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

Given numbers are 840, 370, 563, 645

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

Apply this formula for all numbers.

Step1:

LCM(840, 370) = 31080

GCD(840, 370) = ( 840 x 370 ) / 31080

= 840 / 370

= 840

Step2:

LCM(10, 563) = 5630

GCD(10, 563) = ( 10 x 563 ) / 5630

= 10 / 563

= 10

Step3:

LCM(1, 645) = 645

GCD(1, 645) = ( 1 x 645 ) / 645

= 1 / 645

= 1

So, Greatest Common Divisor of 840, 370, 563, 645 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 897, 632, 405, 711
• GCD of 798, 613, 445, 861
• GCD of 291, 650, 651, 781
• GCD of 606, 183, 158, 973
• GCD of 972, 717, 434, 682

Given numbers are 840, 370, 563, 645
The greatest common divisor of numbers 840, 370, 563, 645 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 840, 370, 563, 645 is 1.

1. What is the GCD of 840, 370, 563, 645?

GCD of given numbers 840, 370, 563, 645 is 1

2. How to calculate the greatest common divisor of 840, 370, 563, 645?

We can find the highest common divisor of 840, 370, 563, 645 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 840, 370, 563, 645 i.e 1.

3. How can I use the GCD of 840, 370, 563, 645Calculator?

Out the numbers 840, 370, 563, 645 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.