GCD of 628, 420, 351, 248 Calculator

Given Input numbers are 628, 420, 351, 248

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

Divisors of 628 :

The positive integer divisors of 628 that completely divides 628 are.

1, 2, 4, 157, 314, 628

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 351 :

The positive integer divisors of 351 that completely divides 351 are.

1, 3, 9, 13, 27, 39, 117, 351

Divisors of 248 :

The positive integer divisors of 248 that completely divides 248 are.

1, 2, 4, 8, 31, 62, 124, 248

GCD of numbers is the greatest common divisor

So, the GCD (628, 420, 351, 248) = 1.

Given numbers are 628, 420, 351, 248

The list of prime factors of all numbers are

Prime factors of 628 are 2 x 2 x 157

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

Prime factors of 351 are 3 x 3 x 3 x 13

Prime factors of 248 are 2 x 2 x 2 x 31

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

Given numbers are 628, 420, 351, 248

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

Apply this formula for all numbers.

Step1:

LCM(628, 420) = 65940

GCD(628, 420) = ( 628 x 420 ) / 65940

= 628 / 420

= 628

Step2:

LCM(4, 351) = 1404

GCD(4, 351) = ( 4 x 351 ) / 1404

= 4 / 351

= 4

Step3:

LCM(1, 248) = 248

GCD(1, 248) = ( 1 x 248 ) / 248

= 1 / 248

= 1

So, Greatest Common Divisor of 628, 420, 351, 248 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 557, 557, 388, 861
• GCD of 981, 893, 426, 481
• GCD of 764, 781, 390, 266
• GCD of 687, 704, 414, 136
• GCD of 174, 888, 944, 113

Given numbers are 628, 420, 351, 248
The greatest common divisor of numbers 628, 420, 351, 248 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 628, 420, 351, 248 is 1.

1. What is the GCD of 628, 420, 351, 248?

GCD of given numbers 628, 420, 351, 248 is 1

2. How to calculate the greatest common divisor of 628, 420, 351, 248?

We can find the highest common divisor of 628, 420, 351, 248 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 628, 420, 351, 248 i.e 1.

3. How can I use the GCD of 628, 420, 351, 248Calculator?

Out the numbers 628, 420, 351, 248 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.