AnswersPrime &

CompositeEtc… Factors and

MultiplesLCM & GCF Prime

FactorizationWord

Problems

10 29 49 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

450 2x2x2x2 LCM=6

20 Prime 21(6) + 21(3) 17,. 34, 51, 68, 85

48 2x2x41 GCF=37

30 Its factors are multiplied by

itself

46 19, 38, 57, 76, 95

Possible Answers:

(2,45) (5,18)(9,10) (18,45)

2x2x2x2x5x5x5Or

24x53

LCM=18

40 2,3,5,7,11,13,17,19,23,29

Many possibilities- ex. 90,000

18,000 etc…

Possible Answers:

2 x 42, 6 x 14, 2 x 6 x 7 …

Possible Answers:

(18,27) (45,54) (18,45)

GCF=2 16

50 Whole numbers greater than one have one unique prime factorization

False. The multiplication and addition signs must be switched for it

to be true.

Remove any of the prime

numbers and you will have a

factor. 22 x 3 x 7

GCF= 26LCM= 312

384 70

A Hanson and Rohlfing Production

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You must give the correct answer. Click to begin.

Click here for Final Jeopardy

Prime/Composite

Etc… LCM/GCFPrime

Factorization& Trees

Word Problems

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50 Points

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20 Points 20 Points 20 Points 20 Points 20 Points

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30 Points 30 Points 30 Points 30 Points

40 Points 40 Points 40 Points 40 Points

50 Points 50 Points 50 Points 50 Points

Factors/Multiples

What is the best first move on a 30

game board for the Factor Game?

What do we call a number with

exactly 2 factors?

Give an example.

How do you know if a number is

square?

Give an example.

Name all the primes between 1 and 30.

What does the Fundamental Theorem of

Arithmetic state?

What is the value of 4 + (3)7?

Use the Distributive Property to write an

expression equivalent to 21(6 + 3)

What is the value of 52 + 3(5 + 2)?

Name a five digit number divisible by

2 and 9.

True or false?

50 + (400 x 32) =

(50 + 400) x (50 + 32)

48 is a multiple of these numbers.

Find the first five multiples of 17.

Find the multiples of 19 that are less

than 100.

Write two different factorizations for

84.

Write the prime factorization of a

factor of

24 x 32 x 7.

Find the LCM of 18 and 25.

Find the GCF of 96 and 48.

Find a pair of numbers that has 90 as the LCM. (You may not use 90)

Find a pair of numbers that have

9 as their GCF.

(You may not use 9)

Find the LCM and GCF of 78 and 104.

Find the prime factorization of 16.

Find the prime factorization of 164.

Find the prime factorization of

2000.

Use Prime Factorization to

find the GCF of 68 and 82.

Use Prime Factorization to

find the LCM of 96 and 128.

If the bakery serves bagels every third day and donuts

every other day, on which day will bagels and donuts be served

on the same day?

A band of pirates divide 185 pieces of silver and 148 gold coins. They were absolutely fair about sharing equally.

How many pirates were there?

The scout leader has a certain number of cookies. They can be divided equally amongst 9

scouts. They can also be divided evenly among 6 scouts.

What is the least amount of cookies he might have?

Clue 1: My number is a perfect square.

Clue 2: The only prime in its prime factorization is 2.

Clue 3: My number is a factor of 32

Clue 4: The sum of its digits is odd.

Clue 1: My number is a multiple of 2 and 7.

Clue 2: My number is less than 100, and more than 50.

Clue 3: My number is a product of 3 different primes.

Make your wager

Suppose 10 and 6 are common factors for two numbers. What other factors must

the numbers have in common.