GCD of 628, 144, 280, 155 Calculator

Given Input numbers are 628, 144, 280, 155

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

Divisors of 628 :

The positive integer divisors of 628 that completely divides 628 are.

1, 2, 4, 157, 314, 628

Divisors of 144 :

The positive integer divisors of 144 that completely divides 144 are.

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144

Divisors of 280 :

The positive integer divisors of 280 that completely divides 280 are.

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280

Divisors of 155 :

The positive integer divisors of 155 that completely divides 155 are.

1, 5, 31, 155

GCD of numbers is the greatest common divisor

So, the GCD (628, 144, 280, 155) = 1.

Given numbers are 628, 144, 280, 155

The list of prime factors of all numbers are

Prime factors of 628 are 2 x 2 x 157

Prime factors of 144 are 2 x 2 x 2 x 2 x 3 x 3

Prime factors of 280 are 2 x 2 x 2 x 5 x 7

Prime factors of 155 are 5 x 31

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

Given numbers are 628, 144, 280, 155

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

Apply this formula for all numbers.

Step1:

LCM(628, 144) = 22608

GCD(628, 144) = ( 628 x 144 ) / 22608

= 628 / 144

= 628

Step2:

LCM(4, 280) = 280

GCD(4, 280) = ( 4 x 280 ) / 280

= 4 / 280

= 4

Step3:

LCM(4, 155) = 620

GCD(4, 155) = ( 4 x 155 ) / 620

= 4 / 155

= 4

So, Greatest Common Divisor of 628, 144, 280, 155 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 870, 368, 909, 989
• GCD of 582, 775, 317, 880
• GCD of 775, 790, 261, 843
• GCD of 586, 765, 462, 874
• GCD of 154, 788, 327, 519

Given numbers are 628, 144, 280, 155
The greatest common divisor of numbers 628, 144, 280, 155 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 628, 144, 280, 155 is 1.

1. What is the GCD of 628, 144, 280, 155?

GCD of given numbers 628, 144, 280, 155 is 1

2. How to calculate the greatest common divisor of 628, 144, 280, 155?

We can find the highest common divisor of 628, 144, 280, 155 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 628, 144, 280, 155 i.e 1.

3. How can I use the GCD of 628, 144, 280, 155Calculator?

Out the numbers 628, 144, 280, 155 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.