GCD of 455, 771, 90, 321 Calculator

Given Input numbers are 455, 771, 90, 321

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

Divisors of 455 :

The positive integer divisors of 455 that completely divides 455 are.

1, 5, 7, 13, 35, 65, 91, 455

Divisors of 771 :

The positive integer divisors of 771 that completely divides 771 are.

1, 3, 257, 771

Divisors of 90 :

The positive integer divisors of 90 that completely divides 90 are.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

Divisors of 321 :

The positive integer divisors of 321 that completely divides 321 are.

1, 3, 107, 321

GCD of numbers is the greatest common divisor

So, the GCD (455, 771, 90, 321) = 1.

Given numbers are 455, 771, 90, 321

The list of prime factors of all numbers are

Prime factors of 455 are 5 x 7 x 13

Prime factors of 771 are 3 x 257

Prime factors of 90 are 2 x 3 x 3 x 5

Prime factors of 321 are 3 x 107

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

Given numbers are 455, 771, 90, 321

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

Apply this formula for all numbers.

Step1:

LCM(455, 771) = 350805

GCD(455, 771) = ( 455 x 771 ) / 350805

= 455 / 771

= 455

Step2:

LCM(1, 90) = 90

GCD(1, 90) = ( 1 x 90 ) / 90

= 1 / 90

= 1

Step3:

LCM(1, 321) = 321

GCD(1, 321) = ( 1 x 321 ) / 321

= 1 / 321

= 1

So, Greatest Common Divisor of 455, 771, 90, 321 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 163, 613, 42, 807
• GCD of 878, 117, 34, 649
• GCD of 136, 585, 35, 426
• GCD of 249, 628, 68, 360
• GCD of 127, 258, 94, 933

Given numbers are 455, 771, 90, 321
The greatest common divisor of numbers 455, 771, 90, 321 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 455, 771, 90, 321 is 1.

1. What is the GCD of 455, 771, 90, 321?

GCD of given numbers 455, 771, 90, 321 is 1

2. How to calculate the greatest common divisor of 455, 771, 90, 321?

We can find the highest common divisor of 455, 771, 90, 321 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 455, 771, 90, 321 i.e 1.

3. How can I use the GCD of 455, 771, 90, 321Calculator?

Out the numbers 455, 771, 90, 321 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.