GCD of 645, 882, 25, 400 Calculator

Given Input numbers are 645, 882, 25, 400

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

Divisors of 645 :

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

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

Divisors of 882 :

The positive integer divisors of 882 that completely divides 882 are.

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 294, 441, 882

Divisors of 25 :

The positive integer divisors of 25 that completely divides 25 are.

1, 5, 25

Divisors of 400 :

The positive integer divisors of 400 that completely divides 400 are.

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400

GCD of numbers is the greatest common divisor

So, the GCD (645, 882, 25, 400) = 1.

Given numbers are 645, 882, 25, 400

The list of prime factors of all numbers are

Prime factors of 645 are 3 x 5 x 43

Prime factors of 882 are 2 x 3 x 3 x 7 x 7

Prime factors of 25 are 5 x 5

Prime factors of 400 are 2 x 2 x 2 x 2 x 5 x 5

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

Given numbers are 645, 882, 25, 400

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

Apply this formula for all numbers.

Step1:

LCM(645, 882) = 189630

GCD(645, 882) = ( 645 x 882 ) / 189630

= 645 / 882

= 645

Step2:

LCM(3, 25) = 75

GCD(3, 25) = ( 3 x 25 ) / 75

= 3 / 25

= 3

Step3:

LCM(1, 400) = 400

GCD(1, 400) = ( 1 x 400 ) / 400

= 1 / 400

= 1

So, Greatest Common Divisor of 645, 882, 25, 400 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 720, 781, 94, 537
• GCD of 283, 184, 76, 764
• GCD of 352, 776, 27, 545
• GCD of 909, 358, 89, 822
• GCD of 925, 109, 41, 942

Given numbers are 645, 882, 25, 400
The greatest common divisor of numbers 645, 882, 25, 400 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 645, 882, 25, 400 is 1.

1. What is the GCD of 645, 882, 25, 400?

GCD of given numbers 645, 882, 25, 400 is 1

2. How to calculate the greatest common divisor of 645, 882, 25, 400?

We can find the highest common divisor of 645, 882, 25, 400 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 645, 882, 25, 400 i.e 1.

3. How can I use the GCD of 645, 882, 25, 400Calculator?

Out the numbers 645, 882, 25, 400 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.