You can calculate the Greatest Common Factor or the Least Common Multiple on this calculator. Use the back arrow to return to the main menu at any time. Sessions are started when you click the green flag. They are ended when you click the stop sign or green flag again, and then started again with the green flag, and so on. The GCF calculator uses Euclid's algorithm, so its best you don't input numbers that are far apart from each other.
If you need other calculators, go here: Advanced Math Functions https://scratch.mit.edu/projects/424818438/ Exponents Calculator: https://scratch.mit.edu/projects/433759303 Thanks (again) to Harry B178 for the sorting function. Thanks to Theo1840 for the prime factor generator, which was modified for the project.