Online GCD Calculator is useful to find the GCD of 245, 755, 990, 408 quickly. Get the easiest ways to solve the greatest common divisor of 245, 755, 990, 408 i.e 1 in different methods as follows.
Given Input numbers are 245, 755, 990, 408
In the factoring method, we have to find the divisors of all numbers
Divisors of 245 :
The positive integer divisors of 245 that completely divides 245 are.
1, 5, 7, 35, 49, 245
Divisors of 755 :
The positive integer divisors of 755 that completely divides 755 are.
1, 5, 151, 755
Divisors of 990 :
The positive integer divisors of 990 that completely divides 990 are.
1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
Divisors of 408 :
The positive integer divisors of 408 that completely divides 408 are.
1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
GCD of numbers is the greatest common divisor
So, the GCD (245, 755, 990, 408) = 1.
Given numbers are 245, 755, 990, 408
The list of prime factors of all numbers are
Prime factors of 245 are 5 x 7 x 7
Prime factors of 755 are 5 x 151
Prime factors of 990 are 2 x 3 x 3 x 5 x 11
Prime factors of 408 are 2 x 2 x 2 x 3 x 17
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 245, 755, 990, 408
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(245, 755) = 36995
GCD(245, 755) = ( 245 x 755 ) / 36995
= 245 / 755
= 245
Step2:
LCM(5, 990) = 990
GCD(5, 990) = ( 5 x 990 ) / 990
= 5 / 990
= 5
Step3:
LCM(5, 408) = 2040
GCD(5, 408) = ( 5 x 408 ) / 2040
= 5 / 408
= 5
So, Greatest Common Divisor of 245, 755, 990, 408 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 245, 755, 990, 408
The greatest common divisor of numbers 245, 755, 990, 408 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 245, 755, 990, 408 is 1.
1. What is the GCD of 245, 755, 990, 408?
GCD of given numbers 245, 755, 990, 408 is 1
2. How to calculate the greatest common divisor of 245, 755, 990, 408?
We can find the highest common divisor of 245, 755, 990, 408 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 245, 755, 990, 408 i.e 1.
3. How can I use the GCD of 245, 755, 990, 408Calculator?
Out the numbers 245, 755, 990, 408 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.