GCD of 399, 761, 763, 420 Calculator

Given Input numbers are 399, 761, 763, 420

In the factoring method, we have to find the divisors of all numbers

Divisors of 399 :

The positive integer divisors of 399 that completely divides 399 are.

1, 3, 7, 19, 21, 57, 133, 399

Divisors of 761 :

The positive integer divisors of 761 that completely divides 761 are.

1, 761

Divisors of 763 :

The positive integer divisors of 763 that completely divides 763 are.

1, 7, 109, 763

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

GCD of numbers is the greatest common divisor

So, the GCD (399, 761, 763, 420) = 1.

Given numbers are 399, 761, 763, 420

The list of prime factors of all numbers are

Prime factors of 399 are 3 x 7 x 19

Prime factors of 761 are 761

Prime factors of 763 are 7 x 109

Prime factors of 420 are 2 x 2 x 3 x 5 x 7

The above numbers do not have any common prime factor. So GCD is 1

Given numbers are 399, 761, 763, 420

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(399, 761) = 303639

GCD(399, 761) = ( 399 x 761 ) / 303639

= 399 / 761

= 399

Step2:

LCM(1, 763) = 763

GCD(1, 763) = ( 1 x 763 ) / 763

= 1 / 763

= 1

Step3:

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

= 1 / 420

= 1

So, Greatest Common Divisor of 399, 761, 763, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 196, 491, 324, 397
• GCD of 529, 966, 544, 200
• GCD of 501, 172, 439, 857
• GCD of 728, 973, 313, 369
• GCD of 799, 478, 100, 437

Given numbers are 399, 761, 763, 420
The greatest common divisor of numbers 399, 761, 763, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 399, 761, 763, 420 is 1.

1. What is the GCD of 399, 761, 763, 420?

GCD of given numbers 399, 761, 763, 420 is 1

2. How to calculate the greatest common divisor of 399, 761, 763, 420?

We can find the highest common divisor of 399, 761, 763, 420 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 399, 761, 763, 420 i.e 1.

3. How can I use the GCD of 399, 761, 763, 420Calculator?

Out the numbers 399, 761, 763, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.