GCD of 870, 636, 661, 689 Calculator

Given Input numbers are 870, 636, 661, 689

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

Divisors of 870 :

The positive integer divisors of 870 that completely divides 870 are.

1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870

Divisors of 636 :

The positive integer divisors of 636 that completely divides 636 are.

1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636

Divisors of 661 :

The positive integer divisors of 661 that completely divides 661 are.

1, 661

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 (870, 636, 661, 689) = 1.

Given numbers are 870, 636, 661, 689

The list of prime factors of all numbers are

Prime factors of 870 are 2 x 3 x 5 x 29

Prime factors of 636 are 2 x 2 x 3 x 53

Prime factors of 661 are 661

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 870, 636, 661, 689

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

Apply this formula for all numbers.

Step1:

LCM(870, 636) = 92220

GCD(870, 636) = ( 870 x 636 ) / 92220

= 870 / 636

= 870

Step2:

LCM(6, 661) = 3966

GCD(6, 661) = ( 6 x 661 ) / 3966

= 6 / 661

= 6

Step3:

LCM(1, 689) = 689

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

= 1 / 689

= 1

So, Greatest Common Divisor of 870, 636, 661, 689 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 705, 359, 953, 944
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Given numbers are 870, 636, 661, 689
The greatest common divisor of numbers 870, 636, 661, 689 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 870, 636, 661, 689 is 1.

1. What is the GCD of 870, 636, 661, 689?

GCD of given numbers 870, 636, 661, 689 is 1

2. How to calculate the greatest common divisor of 870, 636, 661, 689?

We can find the highest common divisor of 870, 636, 661, 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 870, 636, 661, 689 i.e 1.

3. How can I use the GCD of 870, 636, 661, 689Calculator?

Out the numbers 870, 636, 661, 689 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.