LCD of 21, 71, 85 Calculator

Arrange the Inputs 21,71,85 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 126735

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, 71) = 1

LCD(21, 71) = ( 21 x 71 ) / 1

LCD(21, 71) = 1491 / 1

LCD(21, 71) = 1491

Step2:

Here we consider the LCD from the above i.e. 1491 as first number and the next as 85

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

GCF(1491, 85) = 1

LCD(1491, 85) = ( 1491 x 85 ) / 1

LCD(1491, 85) = 126735 / 1

LCD(1491, 85) = 126735

LCD of 21,71,85 is 126735

Here are some samples of LCD of Numbers calculations.

• LCD of 33, 79, 55
• LCD of 13, 74, 98
• LCD of 42, 89, 76
• LCD of 73, 52, 53
• LCD of 42, 38, 46

1. What is the LCD of 21, 71, 85?

Answer: LCD of 21, 71, 85 is 126735.

2. How to find LCD of 21, 71, 85 on a calculator?

Answer: You can find LCD of 21, 71, 85 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, 71, 85?

Least Common Denominator of 21, 71, 85.

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, 71, 85) = 126735.