GCD of 991, 670, 628, 785 Calculator

Given Input numbers are 991, 670, 628, 785

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

Divisors of 991 :

The positive integer divisors of 991 that completely divides 991 are.

1, 991

Divisors of 670 :

The positive integer divisors of 670 that completely divides 670 are.

1, 2, 5, 10, 67, 134, 335, 670

Divisors of 628 :

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

1, 2, 4, 157, 314, 628

Divisors of 785 :

The positive integer divisors of 785 that completely divides 785 are.

1, 5, 157, 785

GCD of numbers is the greatest common divisor

So, the GCD (991, 670, 628, 785) = 1.

Given numbers are 991, 670, 628, 785

The list of prime factors of all numbers are

Prime factors of 991 are 991

Prime factors of 670 are 2 x 5 x 67

Prime factors of 628 are 2 x 2 x 157

Prime factors of 785 are 5 x 157

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

Given numbers are 991, 670, 628, 785

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

Apply this formula for all numbers.

Step1:

LCM(991, 670) = 663970

GCD(991, 670) = ( 991 x 670 ) / 663970

= 991 / 670

= 991

Step2:

LCM(1, 628) = 628

GCD(1, 628) = ( 1 x 628 ) / 628

= 1 / 628

= 1

Step3:

LCM(1, 785) = 785

GCD(1, 785) = ( 1 x 785 ) / 785

= 1 / 785

= 1

So, Greatest Common Divisor of 991, 670, 628, 785 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 850, 398, 625, 238
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• GCD of 982, 478, 344, 842
• GCD of 592, 587, 464, 504
• GCD of 371, 580, 665, 104

Given numbers are 991, 670, 628, 785
The greatest common divisor of numbers 991, 670, 628, 785 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 991, 670, 628, 785 is 1.

1. What is the GCD of 991, 670, 628, 785?

GCD of given numbers 991, 670, 628, 785 is 1

2. How to calculate the greatest common divisor of 991, 670, 628, 785?

We can find the highest common divisor of 991, 670, 628, 785 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 991, 670, 628, 785 i.e 1.

3. How can I use the GCD of 991, 670, 628, 785Calculator?

Out the numbers 991, 670, 628, 785 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.