Lowest Common Multiple (LCM) of 15 and 18

Method

1. List Multiples of Each Number
   • We begin by listing the multiples of both 15 and 18.
2. Identify Common Multiples
   • Find the smallest number that appears in both lists of multiples.

Calculations

Multiples of 15

• 15 x 1 = 15
• 15 x 2 = 30
• 15 x 3 = 45
• 15 x 4 = 60
• 15 x 5 = 75
• 15 x 6 = 90
• 15 x 7 = 105

Multiples of 18

• 18 x 1 = 18
• 18 x 2 = 36
• 18 x 3 = 54
• 18 x 4 = 72
• 18 x 5 = 90

Conclusion

• The Lowest Common Multiple of 15 and 18 is 90, as it is the smallest number that appears in both lists of multiples.