GCD of 490, 831, 680, 780 Calculator

Given Input numbers are 490, 831, 680, 780

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 831 :

The positive integer divisors of 831 that completely divides 831 are.

1, 3, 277, 831

Divisors of 680 :

The positive integer divisors of 680 that completely divides 680 are.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

Divisors of 780 :

The positive integer divisors of 780 that completely divides 780 are.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

GCD of numbers is the greatest common divisor

So, the GCD (490, 831, 680, 780) = 1.

Given numbers are 490, 831, 680, 780

The list of prime factors of all numbers are

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

Prime factors of 831 are 3 x 277

Prime factors of 680 are 2 x 2 x 2 x 5 x 17

Prime factors of 780 are 2 x 2 x 3 x 5 x 13

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

Given numbers are 490, 831, 680, 780

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

Apply this formula for all numbers.

Step1:

LCM(490, 831) = 407190

GCD(490, 831) = ( 490 x 831 ) / 407190

= 490 / 831

= 490

Step2:

LCM(1, 680) = 680

GCD(1, 680) = ( 1 x 680 ) / 680

= 1 / 680

= 1

Step3:

LCM(1, 780) = 780

GCD(1, 780) = ( 1 x 780 ) / 780

= 1 / 780

= 1

So, Greatest Common Divisor of 490, 831, 680, 780 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 369, 437, 140, 148
• GCD of 693, 455, 721, 882
• GCD of 287, 382, 441, 317
• GCD of 914, 269, 567, 845
• GCD of 376, 444, 915, 523

Given numbers are 490, 831, 680, 780
The greatest common divisor of numbers 490, 831, 680, 780 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 490, 831, 680, 780 is 1.

1. What is the GCD of 490, 831, 680, 780?

GCD of given numbers 490, 831, 680, 780 is 1

2. How to calculate the greatest common divisor of 490, 831, 680, 780?

We can find the highest common divisor of 490, 831, 680, 780 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, 831, 680, 780 i.e 1.

3. How can I use the GCD of 490, 831, 680, 780Calculator?

Out the numbers 490, 831, 680, 780 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.