GCD of 988, 421, 690, 247 Calculator

Given Input numbers are 988, 421, 690, 247

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

Divisors of 988 :

The positive integer divisors of 988 that completely divides 988 are.

1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988

Divisors of 421 :

The positive integer divisors of 421 that completely divides 421 are.

1, 421

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 247 :

The positive integer divisors of 247 that completely divides 247 are.

1, 13, 19, 247

GCD of numbers is the greatest common divisor

So, the GCD (988, 421, 690, 247) = 1.

Given numbers are 988, 421, 690, 247

The list of prime factors of all numbers are

Prime factors of 988 are 2 x 2 x 13 x 19

Prime factors of 421 are 421

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

Prime factors of 247 are 13 x 19

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

Given numbers are 988, 421, 690, 247

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

Apply this formula for all numbers.

Step1:

LCM(988, 421) = 415948

GCD(988, 421) = ( 988 x 421 ) / 415948

= 988 / 421

= 988

Step2:

LCM(1, 690) = 690

GCD(1, 690) = ( 1 x 690 ) / 690

= 1 / 690

= 1

Step3:

LCM(1, 247) = 247

GCD(1, 247) = ( 1 x 247 ) / 247

= 1 / 247

= 1

So, Greatest Common Divisor of 988, 421, 690, 247 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 108, 657, 611, 275
• GCD of 208, 864, 166, 947
• GCD of 926, 463, 195, 217
• GCD of 372, 541, 637, 931
• GCD of 166, 365, 599, 719

Given numbers are 988, 421, 690, 247
The greatest common divisor of numbers 988, 421, 690, 247 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 988, 421, 690, 247 is 1.

1. What is the GCD of 988, 421, 690, 247?

GCD of given numbers 988, 421, 690, 247 is 1

2. How to calculate the greatest common divisor of 988, 421, 690, 247?

We can find the highest common divisor of 988, 421, 690, 247 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 988, 421, 690, 247 i.e 1.

3. How can I use the GCD of 988, 421, 690, 247Calculator?

Out the numbers 988, 421, 690, 247 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.