GCD of 490, 791, 128, 478 Calculator

Given Input numbers are 490, 791, 128, 478

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

Divisors of 490 :

The positive integer divisors of 490 that completely divides 490 are.

1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490

Divisors of 791 :

The positive integer divisors of 791 that completely divides 791 are.

1, 7, 113, 791

Divisors of 128 :

The positive integer divisors of 128 that completely divides 128 are.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 478 :

The positive integer divisors of 478 that completely divides 478 are.

1, 2, 239, 478

GCD of numbers is the greatest common divisor

So, the GCD (490, 791, 128, 478) = 1.

Given numbers are 490, 791, 128, 478

The list of prime factors of all numbers are

Prime factors of 490 are 2 x 5 x 7 x 7

Prime factors of 791 are 7 x 113

Prime factors of 128 are 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime factors of 478 are 2 x 239

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

Given numbers are 490, 791, 128, 478

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

Apply this formula for all numbers.

Step1:

LCM(490, 791) = 55370

GCD(490, 791) = ( 490 x 791 ) / 55370

= 490 / 791

= 490

Step2:

LCM(7, 128) = 896

GCD(7, 128) = ( 7 x 128 ) / 896

= 7 / 128

= 7

Step3:

LCM(1, 478) = 478

GCD(1, 478) = ( 1 x 478 ) / 478

= 1 / 478

= 1

So, Greatest Common Divisor of 490, 791, 128, 478 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 664, 953, 141, 168
• GCD of 938, 655, 937, 402
• GCD of 754, 395, 507, 825
• GCD of 928, 570, 412, 733
• GCD of 758, 913, 712, 992

Given numbers are 490, 791, 128, 478
The greatest common divisor of numbers 490, 791, 128, 478 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 490, 791, 128, 478 is 1.

1. What is the GCD of 490, 791, 128, 478?

GCD of given numbers 490, 791, 128, 478 is 1

2. How to calculate the greatest common divisor of 490, 791, 128, 478?

We can find the highest common divisor of 490, 791, 128, 478 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 490, 791, 128, 478 i.e 1.

3. How can I use the GCD of 490, 791, 128, 478Calculator?

Out the numbers 490, 791, 128, 478 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.