Prime Factorization Lcm

What would be the prime factorization of the number 75?

• 5 x 5 x 5

• 3 x 3 x 5

• 3² x 5

• 3 x 5²

Find the LCM of:

• 1

• 5

• 10

• 20

Answer the following question by finding the LCM.

• 90 minutes

• 30 minutes

• 1:45pm

• 1:00pm

Find the LCM of 10 and 12.

• 2

• 20

• 1

• 60

Two neon signs are turned on at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink at the same time?

Yuri decides to eat out at the local diner every 6 days. Daniel decides to eat at the same diner every 9 days. After how many days will they eat there on the same day?

What is the LCM of 3 and 6? 

• 3

• 6

• 12

• 15

Find the LCM of:

• 60

• 1

• 30

• 3

What is the LCM of 8 and 12 using prime factorization?

• 24

• 10

• 16

• 20

Calculate the LCM of 15 and 25 using prime factorization.

• 50

• 75

• 40

• 30