Factors
Multiples
LCM
Word Problems
100
F6=
What is 1,2,3,6
100
0, 24, 48, 72, 96, 120...
What are the multiples of 24?
100
LCM(8,9)=
What is 72
100

Ravi's Apparel sells undershirts in packs of 2. The store's competitor, Sanket's Basics, sells undershirts in packs of 4. If both stores sold the same number of undershirts yesterday, what is the smallest number of undershirts each could have sold?

What is 4

200
F5=
What is 1,5
200
The first five multiples of 46
What is 0, 46, 92, 138, 184?
200
LCM(6,7)=
What is 42
200

A child is arranging green blocks in groups of 4 and purple blocks in groups of 6. If she has the same number of green and purple blocks, what is the smallest number of each color that she could have?

What is 12.

300
The factors of 36
What is 1, 2, 3, 4, 6, 9, 12, 18, 36
300
M7=
What is 0, 7, 14, 21, 28...
300
The least comon multiple of 8 and 24
What is 24?
300

Kim goes to the grocery store every 12 days and visits the gym every 9 days. If she did both errands today, how many days will pass before she does both on the same day again?

What is 36 days.

400
1, 2, 3, 5, 6, 10, 15, 30
What are the factors of 30?
400
True or False The multiples of prime numbers are also prime
False
400
33 is the LCM of these two prime numbers
What are 3 and 11?
400

At a family reunion, each of Will's aunts and uncles is getting photographed once. The aunts are taking pictures in groups of 6 and the uncles are taking pictures in groups of 4. If Will has the same total number of aunts and uncles, what is the minimum number of aunts that Will must have?

What is 12 aunts.

500
The missing number in these factors: 1, 2, 4, 8, 10, 20, 40
What is 5?
500
36, 45, 72, 108 are multiples of this number
What is 9?
500
The LCM of 11 and this number is 132
What is 12?
500

A train to New York city leaves a station every 7 minutes. Another train to Boston leaves the station every 6 minutes. Suppose it is 6:30 am right now. At what time will both trains leave the station together?

What is 7:12 am.

(6:30am + 42 min = 7:12 am )