Prime Time #1

Factors and GCF

100

What are the factors of 36?

1, 2, 3, 4, 6, 9, 12, 18, 36

200

What is the GCF of 11 and 29?

1

300

What is the GCF of 18 and 36? 

18

400

The sixth grade is making Boo Baskets for the Halloween carnival. They have 24 vampire teeth, 40 candy corns, and 32 skull rings. What is the greatest number of Boo Baskets they can make?

8 Boo Baskets 

500

Ms. Hendricks planned a picnic for her birthday. She brought 24 cupcakes and 18 lemonades. If she invites the most friends that she can provide for equally, how many cupcakes and lemonades will each friend get?

6 friends: 4 cupcakes and 3 lemonades.

Multiples and LCM

100

What are the first five multiples of 12?

12, 24, 36, 48, 60

200

What is the LCM of 10 and 12?

60

300

What is the LCM of 11 and 15?

165

400

Crumbl Cookies serve their Pop Tart flavor every 8 days and their Oreo flavor every 6 days. If both flavors are served today, how many days will pass until they're served together again?

24 days

500

There are cicadas with a life cycle of 7 years. The last time they overlapped with the 13-year brood was in 2013. What year will they next overlap? 

2104 (91 years later)

Divisibility Rules

100

True or False: 3, 201 is divisible by 6.

False.

200

75 is divisible by (select): 2, 3, 4, 5, 6, 9, 10

3, 5

300

What is the divisibility rule for 9?

If the sum of the digits is a multiple of 9

400

8, 904: is divisible by (select): 2, 3, 4, 5, 6, 9, 10

2, 3, 4, 6

500

Write a 4-digit number that is divisible by both 6 and 9.

Many answers

Types of Numbers

100

Give an example of an odd composite number.

Ex: 15, 27, 35, etc.

200

What are the first five prime numbers?

2, 3, 5, 7, 11

300

True or False: 18 is an abundant number. 

True

400

List the first 10 square numbers.

1, 4, 9, 16, 25, 36, 49, 64, 81, 100

500

Describe the number 36 using all of the correct terms (select): abundant, deficient, prime, composite, perfect, square

abundant, composite, square