GCD of 661, 490, 744, 428 Calculator

Given Input numbers are 661, 490, 744, 428

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

Divisors of 661 :

The positive integer divisors of 661 that completely divides 661 are.

1, 661

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 744 :

The positive integer divisors of 744 that completely divides 744 are.

1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 744

Divisors of 428 :

The positive integer divisors of 428 that completely divides 428 are.

1, 2, 4, 107, 214, 428

GCD of numbers is the greatest common divisor

So, the GCD (661, 490, 744, 428) = 1.

Given numbers are 661, 490, 744, 428

The list of prime factors of all numbers are

Prime factors of 661 are 661

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

Prime factors of 744 are 2 x 2 x 2 x 3 x 31

Prime factors of 428 are 2 x 2 x 107

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

Given numbers are 661, 490, 744, 428

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

Apply this formula for all numbers.

Step1:

LCM(661, 490) = 323890

GCD(661, 490) = ( 661 x 490 ) / 323890

= 661 / 490

= 661

Step2:

LCM(1, 744) = 744

GCD(1, 744) = ( 1 x 744 ) / 744

= 1 / 744

= 1

Step3:

LCM(1, 428) = 428

GCD(1, 428) = ( 1 x 428 ) / 428

= 1 / 428

= 1

So, Greatest Common Divisor of 661, 490, 744, 428 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 873, 949, 821, 827
• GCD of 614, 647, 217, 493
• GCD of 214, 973, 932, 809
• GCD of 169, 655, 463, 283
• GCD of 342, 831, 557, 732

Given numbers are 661, 490, 744, 428
The greatest common divisor of numbers 661, 490, 744, 428 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 661, 490, 744, 428 is 1.

1. What is the GCD of 661, 490, 744, 428?

GCD of given numbers 661, 490, 744, 428 is 1

2. How to calculate the greatest common divisor of 661, 490, 744, 428?

We can find the highest common divisor of 661, 490, 744, 428 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 661, 490, 744, 428 i.e 1.

3. How can I use the GCD of 661, 490, 744, 428Calculator?

Out the numbers 661, 490, 744, 428 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.