GCD of 345, 987, 977, 155 Calculator

Given Input numbers are 345, 987, 977, 155

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

Divisors of 345 :

The positive integer divisors of 345 that completely divides 345 are.

1, 3, 5, 15, 23, 69, 115, 345

Divisors of 987 :

The positive integer divisors of 987 that completely divides 987 are.

1, 3, 7, 21, 47, 141, 329, 987

Divisors of 977 :

The positive integer divisors of 977 that completely divides 977 are.

1, 977

Divisors of 155 :

The positive integer divisors of 155 that completely divides 155 are.

1, 5, 31, 155

GCD of numbers is the greatest common divisor

So, the GCD (345, 987, 977, 155) = 1.

Given numbers are 345, 987, 977, 155

The list of prime factors of all numbers are

Prime factors of 345 are 3 x 5 x 23

Prime factors of 987 are 3 x 7 x 47

Prime factors of 977 are 977

Prime factors of 155 are 5 x 31

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

Given numbers are 345, 987, 977, 155

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

Apply this formula for all numbers.

Step1:

LCM(345, 987) = 113505

GCD(345, 987) = ( 345 x 987 ) / 113505

= 345 / 987

= 345

Step2:

LCM(3, 977) = 2931

GCD(3, 977) = ( 3 x 977 ) / 2931

= 3 / 977

= 3

Step3:

LCM(1, 155) = 155

GCD(1, 155) = ( 1 x 155 ) / 155

= 1 / 155

= 1

So, Greatest Common Divisor of 345, 987, 977, 155 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 432, 247, 857, 443
• GCD of 528, 306, 672, 786
• GCD of 503, 813, 145, 111
• GCD of 325, 341, 877, 876
• GCD of 237, 575, 335, 343

Given numbers are 345, 987, 977, 155
The greatest common divisor of numbers 345, 987, 977, 155 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 345, 987, 977, 155 is 1.

1. What is the GCD of 345, 987, 977, 155?

GCD of given numbers 345, 987, 977, 155 is 1

2. How to calculate the greatest common divisor of 345, 987, 977, 155?

We can find the highest common divisor of 345, 987, 977, 155 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 345, 987, 977, 155 i.e 1.

3. How can I use the GCD of 345, 987, 977, 155Calculator?

Out the numbers 345, 987, 977, 155 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.