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Prime Factorization
Greatest Common Factor
Equivalent Fractions
Least Common Multiple
Word Problems
100
What is the Prime Factorization of 36?

22 x 32

100
What is the GCF of 120 & 192?
24
100

Write this fraction in its Simplest Form:  15/21

5/7
100
What is the LCM of 24 & 30
120
100

Mr. Joe baked 30 chocolate chip & 48 sugar cookies for all of his wonderful students. He wants to divide the cookies into identical bags so that each bag has the same number of each kind of cookie. If he wants each bag to have the greatest number of cookies possible, how many bags does he need?

6 bags
200
List the factors of 119
1, 7, 17, 119
200
What is the GCF of 75 and 285?
15
200

Write this fraction in its Simplest Form:  12/35

12/35
200
What is the LCM of 18 & 8?
72
200
Mr. Joe goes to the park every 12 days. Mr. Obie goes every 18 days. If they were both at the park today, how many days until they will see each other at the park again?
36 days
300

What is the Prime Factorization of 144?

24 x 32

300

What is the GCF of 45, 60, 75?

15
300

Solve for x :  12/16 = 6/x

x=8
300
What is the LCM of 7, 20 & 35?
140
300

Boxes that are 32 mm tall are being stacked next to boxes that are 26 mm tall.  What is the shortest height at which the two stacks will be the same height?

416 mm
400
List all the Prime Numbers between 108 & 135

 109     113      127     131

400

What is the GCF of 39, 65 & 182?

13
400

Write this fraction in its Simplest Form:  33/81

11/27
400
What is the LCM of 16, 25 & 27?
10,800
400

Two pigs have just farted at the same time. Papa pig farts every 8 minutes and Mama pig farts every 14 minutes.  How many Seconds from now will they fart at the same time?

3,360 Seconds     (56 minutes)
500
What is the Prime Factorization of 864?

25 x 33

500

What is the GCF of 48, 72, 108 & 144?

12
500
Are these 2 fractions equivalent?  34/44 & 136/144
No
500
What is the LCM of 28, 40 & 144?
5,040
500
Three tour buses leave Wellspring at 9am. Bus A returns every 60 mins. , Bus B every 40 mins., and Bus C every 75 mins.  What time will it be when the buses all return to Wellspring at the same time?

19:00   (7pm... after  600 minutes/10 hours)