GCD of 690, 721, 890, 651 Calculator

Given Input numbers are 690, 721, 890, 651

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 721 :

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

1, 7, 103, 721

Divisors of 890 :

The positive integer divisors of 890 that completely divides 890 are.

1, 2, 5, 10, 89, 178, 445, 890

Divisors of 651 :

The positive integer divisors of 651 that completely divides 651 are.

1, 3, 7, 21, 31, 93, 217, 651

GCD of numbers is the greatest common divisor

So, the GCD (690, 721, 890, 651) = 1.

Given numbers are 690, 721, 890, 651

The list of prime factors of all numbers are

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

Prime factors of 721 are 7 x 103

Prime factors of 890 are 2 x 5 x 89

Prime factors of 651 are 3 x 7 x 31

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

Given numbers are 690, 721, 890, 651

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

Apply this formula for all numbers.

Step1:

LCM(690, 721) = 497490

GCD(690, 721) = ( 690 x 721 ) / 497490

= 690 / 721

= 690

Step2:

LCM(1, 890) = 890

GCD(1, 890) = ( 1 x 890 ) / 890

= 1 / 890

= 1

Step3:

LCM(1, 651) = 651

GCD(1, 651) = ( 1 x 651 ) / 651

= 1 / 651

= 1

So, Greatest Common Divisor of 690, 721, 890, 651 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 360, 276, 131, 765
• GCD of 476, 598, 765, 873
• GCD of 472, 282, 191, 702
• GCD of 562, 893, 779, 820
• GCD of 987, 443, 263, 651

Given numbers are 690, 721, 890, 651
The greatest common divisor of numbers 690, 721, 890, 651 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 721, 890, 651 is 1.

1. What is the GCD of 690, 721, 890, 651?

GCD of given numbers 690, 721, 890, 651 is 1

2. How to calculate the greatest common divisor of 690, 721, 890, 651?

We can find the highest common divisor of 690, 721, 890, 651 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, 721, 890, 651 i.e 1.

3. How can I use the GCD of 690, 721, 890, 651Calculator?

Out the numbers 690, 721, 890, 651 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.