Least Common Multiple Math Example 3

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Example 3

easy
Find the LCM of 99 and 1515.

Solution

  1. 1
    9=329 = 3^2 and 15=3×515 = 3 \times 5.
  2. 2
    LCM =32×5=45= 3^2 \times 5 = 45.

Answer

4545
Take the highest power of each prime factor from either number to build the LCM.

About Least Common Multiple

The smallest positive integer that is divisible by each of two or more given numbers—where their multiples first coincide.

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More Least Common Multiple Examples

Example 1 easy

Find the LCM of [formula] and [formula].

Example 2 medium

Find the LCM of [formula], [formula], and [formula].

Example 4 easy

Two lights flash every [formula] seconds and every [formula] seconds. If they flash together now, af

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Related Concepts

MultiplesAdding Fractions