Online GCD Calculator is useful to find the GCD of 420, 535, 697, 245 quickly. Get the easiest ways to solve the greatest common divisor of 420, 535, 697, 245 i.e 1 in different methods as follows.
Given Input numbers are 420, 535, 697, 245
In the factoring method, we have to find the divisors of all numbers
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
Divisors of 535 :
The positive integer divisors of 535 that completely divides 535 are.
1, 5, 107, 535
Divisors of 697 :
The positive integer divisors of 697 that completely divides 697 are.
1, 17, 41, 697
Divisors of 245 :
The positive integer divisors of 245 that completely divides 245 are.
1, 5, 7, 35, 49, 245
GCD of numbers is the greatest common divisor
So, the GCD (420, 535, 697, 245) = 1.
Given numbers are 420, 535, 697, 245
The list of prime factors of all numbers are
Prime factors of 420 are 2 x 2 x 3 x 5 x 7
Prime factors of 535 are 5 x 107
Prime factors of 697 are 17 x 41
Prime factors of 245 are 5 x 7 x 7
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 420, 535, 697, 245
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(420, 535) = 44940
GCD(420, 535) = ( 420 x 535 ) / 44940
= 420 / 535
= 420
Step2:
LCM(5, 697) = 3485
GCD(5, 697) = ( 5 x 697 ) / 3485
= 5 / 697
= 5
Step3:
LCM(1, 245) = 245
GCD(1, 245) = ( 1 x 245 ) / 245
= 1 / 245
= 1
So, Greatest Common Divisor of 420, 535, 697, 245 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 420, 535, 697, 245
The greatest common divisor of numbers 420, 535, 697, 245 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 420, 535, 697, 245 is 1.
1. What is the GCD of 420, 535, 697, 245?
GCD of given numbers 420, 535, 697, 245 is 1
2. How to calculate the greatest common divisor of 420, 535, 697, 245?
We can find the highest common divisor of 420, 535, 697, 245 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 420, 535, 697, 245 i.e 1.
3. How can I use the GCD of 420, 535, 697, 245Calculator?
Out the numbers 420, 535, 697, 245 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.