LCD of 19, 11, 21 Calculator

Arrange the Inputs 19,11,21 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.

Given numbers has no common factors except 1. So, there LCD is their product i.e 4389

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(19, 11) = 1

LCD(19, 11) = ( 19 x 11 ) / 1

LCD(19, 11) = 209 / 1

LCD(19, 11) = 209

Step2:

Here we consider the LCD from the above i.e. 209 as first number and the next as 21

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

GCF(209, 21) = 1

LCD(209, 21) = ( 209 x 21 ) / 1

LCD(209, 21) = 4389 / 1

LCD(209, 21) = 4389

LCD of 19,11,21 is 4389

Here are some samples of LCD of Numbers calculations.

• LCD of 51, 36, 18
• LCD of 15, 41, 93
• LCD of 64, 15, 18
• LCD of 31, 89, 67
• LCD of 94, 80, 91

1. What is the LCD of 19, 11, 21?

Answer: LCD of 19, 11, 21 is 4389.

2. How to find LCD of 19, 11, 21 on a calculator?

Answer: You can find LCD of 19, 11, 21 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 19, 11, 21?

Least Common Denominator of 19, 11, 21.

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(19, 11, 21) = 4389.