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 686, 2180 i.e. 747740 smallest integer divisible by all numbers.
Least common multiple (LCM) of 686, 2180 is 747740.
LCM(686, 2180) = 747740
Least common multiple or lowest common denominator (lcd) can be calculated in three ways
2 | 686, 2180 |
343, 1090 |
∴ So the LCM of the given numbers is 2 x 343 x 1090 = 747740
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 686,2180 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(686,2180) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(686,2180) x common factors =2 x 1 = 2
LCM(686,2180) = ( 686 × 2180 ) / 2
LCM(686,2180) = 1495480 / 2
LCM(686,2180) = 747740
∴ Least Common Multiple of 686,2180 is 747740
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 686, 2180?
Answer: LCM of 686, 2180 is 747740.
2. What are the Factors of 747740?
Answer: Factors of 747740 are . There are integers that are factors of 747740
3. How to Find the LCM of 686, 2180 ?
Least Common Multiple of 686, 2180.
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(686, 2180) = 2 x 2 x 5 x 7 x 7 x 7 x 109 = 747740.