Whole Numbers III

Mathematics J.S.S 2 First Term

Theme: Numbers & Numeration

Sub Theme: Whole Number

WEEK 3 & 4

Whole Numbers III

Performance Objectives

Students should be able to;

1. Find the lowest common multiples (LCM) of numbers
2. Find the highest common multiples (HCF) of numbers

The Least Common Multiples (LCM) Of Numbers

Content

L.C.M is the least common multiple, the smallest number which is exactly divisible by all the given numbers.

The LCM of two or more quantities is the smallest common multiple they have.

For example:

The multiple of 2: 2, 4, 6, 8, 10, 12…

The multiple of 3: 3, 6, 9, 12, 15…

Notice that 6 and 12 are the common multiples of 2 &…