Find LCM from GCF Challenge
        
        
       
      
      
      
  
    
  Find the LCM from GCF of numbers challenge is an online test to assess 4th, 5th or 6th grade student's math skills on finding the least common multiple (LCM) from greatest common factor (GCF) of two or more positive integers in pre-algebra or number system (NS) of common core state standards (CCSS) for mathematics.