GRISELDA

1x50 1,2, 5,10,25,50 * 2x25 5x10 F    
 * Factors 50 *Multiples

The multiples of 50 are, 50, 100, 150*, 200, 250, 300*, etc. *5 because it goes into 15 and 50 *LCM is multiple, not factor. A factor is something that goes into the numbers, and a multiple is a number that has both of the numbers as a factor. A good way to do this is to list out all of the multiples of the numbers, and find the least common numbers.