GCD of 158, 721, 289, 436 Calculator

Given Input numbers are 158, 721, 289, 436

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

Divisors of 158 :

The positive integer divisors of 158 that completely divides 158 are.

1, 2, 79, 158

Divisors of 721 :

The positive integer divisors of 721 that completely divides 721 are.

1, 7, 103, 721

Divisors of 289 :

The positive integer divisors of 289 that completely divides 289 are.

1, 17, 289

Divisors of 436 :

The positive integer divisors of 436 that completely divides 436 are.

1, 2, 4, 109, 218, 436

GCD of numbers is the greatest common divisor

So, the GCD (158, 721, 289, 436) = 1.

Given numbers are 158, 721, 289, 436

The list of prime factors of all numbers are

Prime factors of 158 are 2 x 79

Prime factors of 721 are 7 x 103

Prime factors of 289 are 17 x 17

Prime factors of 436 are 2 x 2 x 109

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

Given numbers are 158, 721, 289, 436

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

Apply this formula for all numbers.

Step1:

LCM(158, 721) = 113918

GCD(158, 721) = ( 158 x 721 ) / 113918

= 158 / 721

= 158

Step2:

LCM(1, 289) = 289

GCD(1, 289) = ( 1 x 289 ) / 289

= 1 / 289

= 1

Step3:

LCM(1, 436) = 436

GCD(1, 436) = ( 1 x 436 ) / 436

= 1 / 436

= 1

So, Greatest Common Divisor of 158, 721, 289, 436 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 685, 998, 725, 255
• GCD of 906, 530, 892, 472
• GCD of 888, 276, 157, 147
• GCD of 130, 142, 161, 152
• GCD of 260, 730, 247, 707

Given numbers are 158, 721, 289, 436
The greatest common divisor of numbers 158, 721, 289, 436 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 158, 721, 289, 436 is 1.

1. What is the GCD of 158, 721, 289, 436?

GCD of given numbers 158, 721, 289, 436 is 1

2. How to calculate the greatest common divisor of 158, 721, 289, 436?

We can find the highest common divisor of 158, 721, 289, 436 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 158, 721, 289, 436 i.e 1.

3. How can I use the GCD of 158, 721, 289, 436Calculator?

Out the numbers 158, 721, 289, 436 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.