Online GCD Calculator is useful to find the GCD of 840, 409, 358, 210 quickly. Get the easiest ways to solve the greatest common divisor of 840, 409, 358, 210 i.e 1 in different methods as follows.
Given Input numbers are 840, 409, 358, 210
In the factoring method, we have to find the divisors of all numbers
Divisors of 840 :
The positive integer divisors of 840 that completely divides 840 are.
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
Divisors of 409 :
The positive integer divisors of 409 that completely divides 409 are.
1, 409
Divisors of 358 :
The positive integer divisors of 358 that completely divides 358 are.
1, 2, 179, 358
Divisors of 210 :
The positive integer divisors of 210 that completely divides 210 are.
1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
GCD of numbers is the greatest common divisor
So, the GCD (840, 409, 358, 210) = 1.
Given numbers are 840, 409, 358, 210
The list of prime factors of all numbers are
Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7
Prime factors of 409 are 409
Prime factors of 358 are 2 x 179
Prime factors of 210 are 2 x 3 x 5 x 7
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 840, 409, 358, 210
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(840, 409) = 343560
GCD(840, 409) = ( 840 x 409 ) / 343560
= 840 / 409
= 840
Step2:
LCM(1, 358) = 358
GCD(1, 358) = ( 1 x 358 ) / 358
= 1 / 358
= 1
Step3:
LCM(1, 210) = 210
GCD(1, 210) = ( 1 x 210 ) / 210
= 1 / 210
= 1
So, Greatest Common Divisor of 840, 409, 358, 210 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 840, 409, 358, 210
The greatest common divisor of numbers 840, 409, 358, 210 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 840, 409, 358, 210 is 1.
1. What is the GCD of 840, 409, 358, 210?
GCD of given numbers 840, 409, 358, 210 is 1
2. How to calculate the greatest common divisor of 840, 409, 358, 210?
We can find the highest common divisor of 840, 409, 358, 210 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 840, 409, 358, 210 i.e 1.
3. How can I use the GCD of 840, 409, 358, 210Calculator?
Out the numbers 840, 409, 358, 210 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.