GCD of 989, 551, 378, 420 Calculator

Given Input numbers are 989, 551, 378, 420

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

Divisors of 989 :

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

1, 23, 43, 989

Divisors of 551 :

The positive integer divisors of 551 that completely divides 551 are.

1, 19, 29, 551

Divisors of 378 :

The positive integer divisors of 378 that completely divides 378 are.

1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378

Divisors of 420 :

The positive integer divisors of 420 that completely divides 420 are.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

GCD of numbers is the greatest common divisor

So, the GCD (989, 551, 378, 420) = 1.

Given numbers are 989, 551, 378, 420

The list of prime factors of all numbers are

Prime factors of 989 are 23 x 43

Prime factors of 551 are 19 x 29

Prime factors of 378 are 2 x 3 x 3 x 3 x 7

Prime factors of 420 are 2 x 2 x 3 x 5 x 7

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

Given numbers are 989, 551, 378, 420

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

Apply this formula for all numbers.

Step1:

LCM(989, 551) = 544939

GCD(989, 551) = ( 989 x 551 ) / 544939

= 989 / 551

= 989

Step2:

LCM(1, 378) = 378

GCD(1, 378) = ( 1 x 378 ) / 378

= 1 / 378

= 1

Step3:

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

= 1 / 420

= 1

So, Greatest Common Divisor of 989, 551, 378, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 984, 495, 897, 988
• GCD of 386, 331, 254, 595
• GCD of 614, 714, 180, 657
• GCD of 387, 197, 368, 580
• GCD of 265, 586, 312, 479

Given numbers are 989, 551, 378, 420
The greatest common divisor of numbers 989, 551, 378, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 989, 551, 378, 420 is 1.

1. What is the GCD of 989, 551, 378, 420?

GCD of given numbers 989, 551, 378, 420 is 1

2. How to calculate the greatest common divisor of 989, 551, 378, 420?

We can find the highest common divisor of 989, 551, 378, 420 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 989, 551, 378, 420 i.e 1.

3. How can I use the GCD of 989, 551, 378, 420Calculator?

Out the numbers 989, 551, 378, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.