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Vocabulary
Prime Numbers
Composite Numbers
Divisibilty
Prime Factorization
Random
100
A number with exactly two factors, 1 and the number itself.
What is a PRIME NUMBER?
100

Chloe has a prime number on her soccer jersey. Which of the following could NOT be Chloe's number?


37

23

15

29

15

100
What are ALL the factors of 20?
1, 2, 4, 5, 10, and 20?
100
How do you know if a number is divisible by 2?
It ends in 0,2,4,6,8.
100
What is the prime factorization of 125?
5 X 5 X 5 5 to the third power
100

Give the name of at least one of Ms K's dogs.

Coco (or Charlie)

200
A number with more than two factors.
What is a COMPOSITE NUMBER?
200

Which of the following is a PRIME NUMBER?

18

25

53

51

53

200

Which number is composite?


23

48

31

67

48

200
How do you know if a number is divisible by 10?
It ends with 0.
200

What is the prime factorization 36?

2 X 2 X 3 X 3 

200

How many years ago was St Margaret's founded?

130 years

300
A number written as the product of its prime factors.
What is prime factorization?
300
What are the first 10 prime numbers?
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
300

Alyson is racing at a go-cart track. The go-cart that she is driving has a COMPOSITE NUMBER. Which of the following could NOT be her go-cart number?


51

39

27

29

29

300
How do you know if a number is divisible by 3?
Add the digits and determine if the sum is a multiple of 3.
300

Give the prime factors of 22.

11 and 2

300

In chess, in what direction can a bishop move?

Diagonally

400
A number multiplied by another number to find a product.
What is a FACTOR?
400

Which number is NOT prime?

24

33

51

59

What is 59?

400

Meredith’s street address is a composite number less than 10 that can be formed by multiplying 2 different prime numbers. What is Meredith’s street address?

6

2 and 3 are the only two prime numbers whose product is less than 10

(2 x 3 = 6).

400

What is the divisibility test for 9?

If the sum of the digits of the number are divisible by 9, then the digit itself is divisible by 9.

400

What is the prime factorisation of 100?

2 X 2 X 5 X 5

400

The Statue of Liberty was a gift to the U.S. from what country?

France.

500

What is a multiple? Give a definition and an example.

The product of a number and an integer.

500

State whether each number is prime or composite.


23

48

31

18

48 composite

31 prime

18 composite

500

Which of the following numbers is NOT composite?


18

54

59

111

59

500

There are 12 factors of 60. List all of them.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

500

What is the prime factorization of 147?

What is 3 x 7 x 7

500

Which is the only vowel on a standard keyboard that is not on the top line of letters?

A