Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Use the LCM of two or more numbers Calculator to find the Least Common Multiple of numbers 9, 75, 18, 91, 20 i.e. 81900 smallest integer divisible by all numbers.
Least common multiple (LCM) of 9, 75, 18, 91, 20 is 81900.
LCM(9, 75, 18, 91, 20) = 81900
Least common multiple or lowest common denominator (lcd) can be calculated in three ways
2 | 9, 75, 18, 91, 20 |
3 | 9, 75, 9, 91, 10 |
3 | 3, 25, 3, 91, 10 |
5 | 1, 25, 1, 91, 10 |
1, 5, 1, 91, 2 |
∴ So the LCM of the given numbers is 2 x 3 x 3 x 5 x 1 x 5 x 1 x 91 x 2 = 81900
The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).
We need to calculate greatest common factor of 9,75,18,91,20 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(9,75,18,91,20) = 1
common factors(in case of two or more numbers have common factors) = 270
GCF(9,75,18,91,20) x common factors =1 x 270 = 270
LCM(9,75,18,91,20) = ( 9 × 75 × 18 × 91 × 20 ) / 270
LCM(9,75,18,91,20) = 22113000 / 270
LCM(9,75,18,91,20) = 81900
∴ Least Common Multiple of 9,75,18,91,20 is 81900
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 9, 75, 18, 91, 20?
Answer: LCM of 9, 75, 18, 91, 20 is 81900.
2. What are the Factors of 81900?
Answer: Factors of 81900 are . There are integers that are factors of 81900
3. How to Find the LCM of 9, 75, 18, 91, 20 ?
Least Common Multiple of 9, 75, 18, 91, 20.
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 LCM(9, 75, 18, 91, 20) = 2 x 2 x 3 x 3 x 5 x 5 x 7 x 13 = 81900.