LCD of 687, 138, 788 Calculator

Arrange the Inputs 687,138,788 in a horizontal line separated by commas and divide them with a prime number. Note the quotients in the next row and divide with quotients with prime numbers again. Continue the process until you have all co primes in the last.

As all the numbers left in the last row are co primes you need not do the common division process further.

To obtain the Least Common Denominator, multiply the prime numbers with which you have divided the given numbers and the co primes in the last row i.e. 2 x 3 x 229 x 23 x 394 = 12451188

Therefore, LCD of 687,138,788 is 12451188

Step1:

Let's calculate the LCD of first two numbers

The formula of LCD is LCD(a,b) = ( a x b) / GCF(a,b)

GCF(687, 138) = 3

LCD(687, 138) = ( 687 x 138 ) / 3

LCD(687, 138) = 94806 / 3

LCD(687, 138) = 31602

Step2:

Here we consider the LCD from the above i.e. 31602 as first number and the next as 788

The formula of LCD is LCD(a,b) = ( a x b) / GCF(a,b)

GCF(31602, 788) = 2

LCD(31602, 788) = ( 31602 x 788 ) / 2

LCD(31602, 788) = 24902376 / 2

LCD(31602, 788) = 12451188

LCD of 687,138,788 is 12451188

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1. What is the LCD of 687, 138, 788?

Answer: LCD of 687, 138, 788 is 12451188.

2. How to find LCD of 687, 138, 788 on a calculator?

Answer: You can find LCD of 687, 138, 788 by simply giving the inputs in the input field and clicking on the Calculator button next to it to get the concerned Least Common Denominator.

3. How to Find the LCD of 687, 138, 788?

Least Common Denominator of 687, 138, 788.

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors with last row quotient of common division that is LCD(687, 138, 788) = 12451188.