Online GCD Calculator is useful to find the GCD of 821, 245, 660, 496 quickly. Get the easiest ways to solve the greatest common divisor of 821, 245, 660, 496 i.e 1 in different methods as follows.
Given Input numbers are 821, 245, 660, 496
In the factoring method, we have to find the divisors of all numbers
Divisors of 821 :
The positive integer divisors of 821 that completely divides 821 are.
1, 821
Divisors of 245 :
The positive integer divisors of 245 that completely divides 245 are.
1, 5, 7, 35, 49, 245
Divisors of 660 :
The positive integer divisors of 660 that completely divides 660 are.
1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
Divisors of 496 :
The positive integer divisors of 496 that completely divides 496 are.
1, 2, 4, 8, 16, 31, 62, 124, 248, 496
GCD of numbers is the greatest common divisor
So, the GCD (821, 245, 660, 496) = 1.
Given numbers are 821, 245, 660, 496
The list of prime factors of all numbers are
Prime factors of 821 are 821
Prime factors of 245 are 5 x 7 x 7
Prime factors of 660 are 2 x 2 x 3 x 5 x 11
Prime factors of 496 are 2 x 2 x 2 x 2 x 31
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 821, 245, 660, 496
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(821, 245) = 201145
GCD(821, 245) = ( 821 x 245 ) / 201145
= 821 / 245
= 821
Step2:
LCM(1, 660) = 660
GCD(1, 660) = ( 1 x 660 ) / 660
= 1 / 660
= 1
Step3:
LCM(1, 496) = 496
GCD(1, 496) = ( 1 x 496 ) / 496
= 1 / 496
= 1
So, Greatest Common Divisor of 821, 245, 660, 496 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 821, 245, 660, 496
The greatest common divisor of numbers 821, 245, 660, 496 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 245, 660, 496 is 1.
1. What is the GCD of 821, 245, 660, 496?
GCD of given numbers 821, 245, 660, 496 is 1
2. How to calculate the greatest common divisor of 821, 245, 660, 496?
We can find the highest common divisor of 821, 245, 660, 496 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 821, 245, 660, 496 i.e 1.
3. How can I use the GCD of 821, 245, 660, 496Calculator?
Out the numbers 821, 245, 660, 496 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.