GCD of 154, 387, 420, 742 Calculator

Given Input numbers are 154, 387, 420, 742

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

Divisors of 154 :

The positive integer divisors of 154 that completely divides 154 are.

1, 2, 7, 11, 14, 22, 77, 154

Divisors of 387 :

The positive integer divisors of 387 that completely divides 387 are.

1, 3, 9, 43, 129, 387

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 742 :

The positive integer divisors of 742 that completely divides 742 are.

1, 2, 7, 14, 53, 106, 371, 742

GCD of numbers is the greatest common divisor

So, the GCD (154, 387, 420, 742) = 1.

Given numbers are 154, 387, 420, 742

The list of prime factors of all numbers are

Prime factors of 154 are 2 x 7 x 11

Prime factors of 387 are 3 x 3 x 43

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

Prime factors of 742 are 2 x 7 x 53

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

Given numbers are 154, 387, 420, 742

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

Apply this formula for all numbers.

Step1:

LCM(154, 387) = 59598

GCD(154, 387) = ( 154 x 387 ) / 59598

= 154 / 387

= 154

Step2:

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

= 1 / 420

= 1

Step3:

LCM(1, 742) = 742

GCD(1, 742) = ( 1 x 742 ) / 742

= 1 / 742

= 1

So, Greatest Common Divisor of 154, 387, 420, 742 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 288, 301, 154, 478
• GCD of 615, 930, 878, 634
• GCD of 915, 489, 502, 753
• GCD of 892, 144, 585, 950
• GCD of 941, 256, 736, 996

Given numbers are 154, 387, 420, 742
The greatest common divisor of numbers 154, 387, 420, 742 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 154, 387, 420, 742 is 1.

1. What is the GCD of 154, 387, 420, 742?

GCD of given numbers 154, 387, 420, 742 is 1

2. How to calculate the greatest common divisor of 154, 387, 420, 742?

We can find the highest common divisor of 154, 387, 420, 742 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 154, 387, 420, 742 i.e 1.

3. How can I use the GCD of 154, 387, 420, 742Calculator?

Out the numbers 154, 387, 420, 742 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.