GCD of 253, 520, 209, 691 Calculator

Given Input numbers are 253, 520, 209, 691

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

Divisors of 253 :

The positive integer divisors of 253 that completely divides 253 are.

1, 11, 23, 253

Divisors of 520 :

The positive integer divisors of 520 that completely divides 520 are.

1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520

Divisors of 209 :

The positive integer divisors of 209 that completely divides 209 are.

1, 11, 19, 209

Divisors of 691 :

The positive integer divisors of 691 that completely divides 691 are.

1, 691

GCD of numbers is the greatest common divisor

So, the GCD (253, 520, 209, 691) = 1.

Given numbers are 253, 520, 209, 691

The list of prime factors of all numbers are

Prime factors of 253 are 11 x 23

Prime factors of 520 are 2 x 2 x 2 x 5 x 13

Prime factors of 209 are 11 x 19

Prime factors of 691 are 691

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

Given numbers are 253, 520, 209, 691

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

Apply this formula for all numbers.

Step1:

LCM(253, 520) = 131560

GCD(253, 520) = ( 253 x 520 ) / 131560

= 253 / 520

= 253

Step2:

LCM(1, 209) = 209

GCD(1, 209) = ( 1 x 209 ) / 209

= 1 / 209

= 1

Step3:

LCM(1, 691) = 691

GCD(1, 691) = ( 1 x 691 ) / 691

= 1 / 691

= 1

So, Greatest Common Divisor of 253, 520, 209, 691 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 749, 329, 207, 469
• GCD of 303, 211, 610, 269
• GCD of 623, 677, 140, 897
• GCD of 945, 309, 703, 160
• GCD of 533, 187, 639, 899

Given numbers are 253, 520, 209, 691
The greatest common divisor of numbers 253, 520, 209, 691 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 253, 520, 209, 691 is 1.

1. What is the GCD of 253, 520, 209, 691?

GCD of given numbers 253, 520, 209, 691 is 1

2. How to calculate the greatest common divisor of 253, 520, 209, 691?

We can find the highest common divisor of 253, 520, 209, 691 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 253, 520, 209, 691 i.e 1.

3. How can I use the GCD of 253, 520, 209, 691Calculator?

Out the numbers 253, 520, 209, 691 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.