Math Slice
Math Slice: Greatest Common Divisor (Factor): Math Worksheets
This tool allows you to create worksheets where students must find the greatest common factor in a set of two to four whole numbers.
Cuemath
Cuemath: Least Common Multiple
Learn about the properties of Least Common Multiples (LCM) and the three methods to find the LCM. Included are solved examples and interactive problems for review.