LCD of 21, 67, 31 Calculator

Arrange the Inputs 21,67,31 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 43617

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(21, 67) = 1

LCD(21, 67) = ( 21 x 67 ) / 1

LCD(21, 67) = 1407 / 1

LCD(21, 67) = 1407

Step2:

Here we consider the LCD from the above i.e. 1407 as first number and the next as 31

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

GCF(1407, 31) = 1

LCD(1407, 31) = ( 1407 x 31 ) / 1

LCD(1407, 31) = 43617 / 1

LCD(1407, 31) = 43617

LCD of 21,67,31 is 43617

Here are some samples of LCD of Numbers calculations.

• LCD of 49, 42, 44
• LCD of 77, 49, 15
• LCD of 79, 15, 21
• LCD of 45, 52, 11
• LCD of 62, 30, 24

1. What is the LCD of 21, 67, 31?

Answer: LCD of 21, 67, 31 is 43617.

2. How to find LCD of 21, 67, 31 on a calculator?

Answer: You can find LCD of 21, 67, 31 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 21, 67, 31?

Least Common Denominator of 21, 67, 31.

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(21, 67, 31) = 43617.