GCD of 315, 642, 991, 440 Calculator

Given Input numbers are 315, 642, 991, 440

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

Divisors of 315 :

The positive integer divisors of 315 that completely divides 315 are.

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315

Divisors of 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 991 :

The positive integer divisors of 991 that completely divides 991 are.

1, 991

Divisors of 440 :

The positive integer divisors of 440 that completely divides 440 are.

1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440

GCD of numbers is the greatest common divisor

So, the GCD (315, 642, 991, 440) = 1.

Given numbers are 315, 642, 991, 440

The list of prime factors of all numbers are

Prime factors of 315 are 3 x 3 x 5 x 7

Prime factors of 642 are 2 x 3 x 107

Prime factors of 991 are 991

Prime factors of 440 are 2 x 2 x 2 x 5 x 11

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

Given numbers are 315, 642, 991, 440

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

Apply this formula for all numbers.

Step1:

LCM(315, 642) = 67410

GCD(315, 642) = ( 315 x 642 ) / 67410

= 315 / 642

= 315

Step2:

LCM(3, 991) = 2973

GCD(3, 991) = ( 3 x 991 ) / 2973

= 3 / 991

= 3

Step3:

LCM(1, 440) = 440

GCD(1, 440) = ( 1 x 440 ) / 440

= 1 / 440

= 1

So, Greatest Common Divisor of 315, 642, 991, 440 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 745, 288, 881, 628
• GCD of 201, 464, 734, 210
• GCD of 732, 562, 213, 192
• GCD of 597, 635, 638, 451
• GCD of 833, 768, 870, 114

Given numbers are 315, 642, 991, 440
The greatest common divisor of numbers 315, 642, 991, 440 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 315, 642, 991, 440 is 1.

1. What is the GCD of 315, 642, 991, 440?

GCD of given numbers 315, 642, 991, 440 is 1

2. How to calculate the greatest common divisor of 315, 642, 991, 440?

We can find the highest common divisor of 315, 642, 991, 440 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 315, 642, 991, 440 i.e 1.

3. How can I use the GCD of 315, 642, 991, 440Calculator?

Out the numbers 315, 642, 991, 440 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.