Elementary School, Primary School, Junior High School, Middle School, High School.
For two given numbers, the gcd and lcm are determined by comparing lists of multiples or divisors
Two numbers are given. For these numbers, either the greatest common divisor (gcd) or least common multiple (lcm) have to be determined. The problem generator can be configured to ask only for one of them, or for both in a random fashion.
For this problem type, the straightforward approach to compare
The number range can be chosen, and the number of problems presented is selectable.
Optionally, as a hint, the first few multiples (for the lcm) or divisors (for the gcd) can be given with the problem.
Download free printable worksheets for this math problem here. The worksheet contains the problems only, the solution sheet includes the answers. Just click on the respective link.
If you can not see the solution sheets for download, they may be filtered out by an ad blocker that you may have installed. If this is the case, please allow ads for this page and reload the page. The solution sheets will then reappear.
Cookies are small data snippets that we store on your computer to recognize you when you use our website.
There are cookies that we need for technical reasons to make the website usable for you. You cannot deactivate these, because otherwise our website would not work.
Technically necessary cookies
Cookies for tracking activity and displaying personalized ads