user2977 user2977

09-03-2021
Mathematics

contestada

what is the LCM for 9, 18 and 72

Respuesta :

mathstudent55 mathstudent55

09-03-2021

Answer:

72

Step-by-step explanation:

9 = 3^2

18 = 2 * 3^2

72 = 2^3 * 3^2

For LCM use common and not common factors with greater exponent.

Use 2^3 and 3^2.

LCM = 2^3 * 3^2 = 8 * 9 = 72

Answer: 72

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