GCD of 690, 662, 91, 621 Calculator

Given Input numbers are 690, 662, 91, 621

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

Divisors of 690 :

The positive integer divisors of 690 that completely divides 690 are.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

Divisors of 662 :

The positive integer divisors of 662 that completely divides 662 are.

1, 2, 331, 662

Divisors of 91 :

The positive integer divisors of 91 that completely divides 91 are.

1, 7, 13, 91

Divisors of 621 :

The positive integer divisors of 621 that completely divides 621 are.

1, 3, 9, 23, 27, 69, 207, 621

GCD of numbers is the greatest common divisor

So, the GCD (690, 662, 91, 621) = 1.

Given numbers are 690, 662, 91, 621

The list of prime factors of all numbers are

Prime factors of 690 are 2 x 3 x 5 x 23

Prime factors of 662 are 2 x 331

Prime factors of 91 are 7 x 13

Prime factors of 621 are 3 x 3 x 3 x 23

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

Given numbers are 690, 662, 91, 621

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

Apply this formula for all numbers.

Step1:

LCM(690, 662) = 228390

GCD(690, 662) = ( 690 x 662 ) / 228390

= 690 / 662

= 690

Step2:

LCM(2, 91) = 182

GCD(2, 91) = ( 2 x 91 ) / 182

= 2 / 91

= 2

Step3:

LCM(1, 621) = 621

GCD(1, 621) = ( 1 x 621 ) / 621

= 1 / 621

= 1

So, Greatest Common Divisor of 690, 662, 91, 621 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 108, 416, 12, 893
• GCD of 129, 305, 64, 208
• GCD of 227, 844, 92, 134
• GCD of 231, 424, 20, 285
• GCD of 499, 338, 32, 721

Given numbers are 690, 662, 91, 621
The greatest common divisor of numbers 690, 662, 91, 621 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 662, 91, 621 is 1.

1. What is the GCD of 690, 662, 91, 621?

GCD of given numbers 690, 662, 91, 621 is 1

2. How to calculate the greatest common divisor of 690, 662, 91, 621?

We can find the highest common divisor of 690, 662, 91, 621 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 690, 662, 91, 621 i.e 1.

3. How can I use the GCD of 690, 662, 91, 621Calculator?

Out the numbers 690, 662, 91, 621 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.