Question

How to calculate the LCM (Least Common Multiple) of 3 numbers in JavaScript

Answer 1

function getLMC(a, b, c) {
    let lmc = Math.max(Math.max(a, b), c);
            
    while(true) {
          if (lmc % a == 0 && lmc % b == 0 && lmc % c == 0) {
              return lmc;
          }
          lmc++;
    }
}
        
const a = 12;
const b = 15;
const c = 40;
   
console.log("The LCM (Least Common Multiple) is: " + getLMC(a, b, c));

  
    
    
/*
run:
    
"The LCM (Least Common Multiple) is: 120"
    
*/

 

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Answer 2

function getLMC(a, b) {
    let lmc = Math.max(a, b);
            
    while(true) {
          if (lmc % a == 0 && lmc % b == 0) {
              return lmc;
          }
          lmc++;
    }
}
        
const a = 12;
const b = 15;
const c = 40;
   
console.log("The LCM (Least Common Multiple) is: " + getLMC(getLMC(a, b), c));

  
    
    
/*
run:
    
"The LCM (Least Common Multiple) is: 120"
    
*/

 

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