Online GCD Calculator is useful to find the GCD of 397, 920, 980 quickly. Get the easiest ways to solve the greatest common divisor of 397, 920, 980 i.e 1 in different methods as follows.
Given Input numbers are 397, 920, 980
In the factoring method, we have to find the divisors of all numbers
Divisors of 397 :
The positive integer divisors of 397 that completely divides 397 are.
1, 397
Divisors of 920 :
The positive integer divisors of 920 that completely divides 920 are.
1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920
Divisors of 980 :
The positive integer divisors of 980 that completely divides 980 are.
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
GCD of numbers is the greatest common divisor
So, the GCD (397, 920, 980) = 1.
Given numbers are 397, 920, 980
The list of prime factors of all numbers are
Prime factors of 397 are 397
Prime factors of 920 are 2 x 2 x 2 x 5 x 23
Prime factors of 980 are 2 x 2 x 5 x 7 x 7
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 397, 920, 980
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(397, 920) = 365240
GCD(397, 920) = ( 397 x 920 ) / 365240
= 397 / 920
= 397
Step2:
LCM(1, 980) = 980
GCD(1, 980) = ( 1 x 980 ) / 980
= 1 / 980
= 1
So, Greatest Common Divisor of 397, 920, 980 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 397, 920, 980
The greatest common divisor of numbers 397, 920, 980 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 397, 920, 980 is 1.
1. What is the GCD of 397, 920, 980?
GCD of given numbers 397, 920, 980 is 1
2. How to calculate the greatest common divisor of 397, 920, 980?
We can find the highest common divisor of 397, 920, 980 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 397, 920, 980 i.e 1.
3. How can I use the GCD of 397, 920, 980Calculator?
Out the numbers 397, 920, 980 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.