GCD of 690, 989, 938, 156 Calculator

Given Input numbers are 690, 989, 938, 156

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

Divisors of 690 :

The positive integer divisors of 690 that completely divides 690 are.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

Divisors of 989 :

The positive integer divisors of 989 that completely divides 989 are.

1, 23, 43, 989

Divisors of 938 :

The positive integer divisors of 938 that completely divides 938 are.

1, 2, 7, 14, 67, 134, 469, 938

Divisors of 156 :

The positive integer divisors of 156 that completely divides 156 are.

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

GCD of numbers is the greatest common divisor

So, the GCD (690, 989, 938, 156) = 1.

Given numbers are 690, 989, 938, 156

The list of prime factors of all numbers are

Prime factors of 690 are 2 x 3 x 5 x 23

Prime factors of 989 are 23 x 43

Prime factors of 938 are 2 x 7 x 67

Prime factors of 156 are 2 x 2 x 3 x 13

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

Given numbers are 690, 989, 938, 156

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

Apply this formula for all numbers.

Step1:

LCM(690, 989) = 29670

GCD(690, 989) = ( 690 x 989 ) / 29670

= 690 / 989

= 690

Step2:

LCM(23, 938) = 21574

GCD(23, 938) = ( 23 x 938 ) / 21574

= 23 / 938

= 23

Step3:

LCM(1, 156) = 156

GCD(1, 156) = ( 1 x 156 ) / 156

= 1 / 156

= 1

So, Greatest Common Divisor of 690, 989, 938, 156 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 792, 498, 960, 899
• GCD of 878, 147, 119, 294
• GCD of 483, 507, 408, 599
• GCD of 177, 550, 998, 375
• GCD of 590, 831, 293, 915

Given numbers are 690, 989, 938, 156
The greatest common divisor of numbers 690, 989, 938, 156 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 989, 938, 156 is 1.

1. What is the GCD of 690, 989, 938, 156?

GCD of given numbers 690, 989, 938, 156 is 1

2. How to calculate the greatest common divisor of 690, 989, 938, 156?

We can find the highest common divisor of 690, 989, 938, 156 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 690, 989, 938, 156 i.e 1.

3. How can I use the GCD of 690, 989, 938, 156Calculator?

Out the numbers 690, 989, 938, 156 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.