HCF and LCM

The Highest Common Factor (HCF) and the Lowest Common Multiple (LCM) are easy once you get used to the names.

• HCF of 8 and 12 is 4. The HCF is smaller than the numbers.
• LCM of 8 and 12 is 24. The LCM is larger than the numbers.

Page with notes and interactive exercises :: you can try to answer the questions as you go along and then check your answers. This page explains both the ‘common sense’ method and the ‘prime factors’ method.

This entry was posted on Friday, September 29th, 2006 at 2:54pm and is filed under Number, Whole Numbers. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response or trackback from your own site.