GCD of 521, 989, 390, 490 Calculator

Given Input numbers are 521, 989, 390, 490

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

Divisors of 521 :

The positive integer divisors of 521 that completely divides 521 are.

1, 521

Divisors of 989 :

The positive integer divisors of 989 that completely divides 989 are.

1, 23, 43, 989

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

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

GCD of numbers is the greatest common divisor

So, the GCD (521, 989, 390, 490) = 1.

Given numbers are 521, 989, 390, 490

The list of prime factors of all numbers are

Prime factors of 521 are 521

Prime factors of 989 are 23 x 43

Prime factors of 390 are 2 x 3 x 5 x 13

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

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

Given numbers are 521, 989, 390, 490

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

Apply this formula for all numbers.

Step1:

LCM(521, 989) = 515269

GCD(521, 989) = ( 521 x 989 ) / 515269

= 521 / 989

= 521

Step2:

LCM(1, 390) = 390

GCD(1, 390) = ( 1 x 390 ) / 390

= 1 / 390

= 1

Step3:

LCM(1, 490) = 490

GCD(1, 490) = ( 1 x 490 ) / 490

= 1 / 490

= 1

So, Greatest Common Divisor of 521, 989, 390, 490 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 613, 224, 888, 608
• GCD of 868, 485, 838, 479
• GCD of 476, 772, 416, 648
• GCD of 743, 968, 587, 965
• GCD of 278, 994, 460, 327

Given numbers are 521, 989, 390, 490
The greatest common divisor of numbers 521, 989, 390, 490 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 521, 989, 390, 490 is 1.

1. What is the GCD of 521, 989, 390, 490?

GCD of given numbers 521, 989, 390, 490 is 1

2. How to calculate the greatest common divisor of 521, 989, 390, 490?

We can find the highest common divisor of 521, 989, 390, 490 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 521, 989, 390, 490 i.e 1.

3. How can I use the GCD of 521, 989, 390, 490Calculator?

Out the numbers 521, 989, 390, 490 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.