Factors
Multiples
Prime Numbers
Composite Numbers
Square Numbers
100
Find the factors of the number 9.
The factors of 9 are: 1, 3, and 9
100
What are the first 3 multiples of the number 8.
The first 3 multiples of 8 are: 8, 16, and 24
100
What is the smallest PRIME number?
The smallest PRIME number is 2. It is also the only even prime number.
100
What is a COMPOSITE number?
A COMPOSITE number is a number that has MORE than 2 factors. A composite number can also make more than 1 rectangular array.
100
What is a square number?
A square number is a number that can be made into a SQUARE ARRAY.
200
Find the factors of the number 16.
The factors of 18 are: 1, 2, 4, 8, and 16
200
What are the first 5 multiples of the number 15?
The first 5 multiples of 15 are: 15, 30, 45, 60, and 75
200
What are the prime numbers in this set: 3, 5, 7, 9, 11
The prime numbers are: 3, 5, 7, and 11
200
Find all the rectangular arrays for the number 24
1x24, 2x12, 3x8, 4x6
200
What are the first 10 square numbers?
The first 10 square numbers are: 1, 4, 9, 16, 25, 36, 49, 64, 81, and 100
300
Find the factors of the number 36.
The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, and 36
300
What are the first 10 multiples of the number 25?
The first 10 multiples of 25 are: 25, 50, 75, 100, 125, 150, 175, 200, 225, and 250
300
What is a PRIME number?
A PRIME number is a number with only 2 factors, 1 and itself. You can also only make 1 rectangular array with prime numbers.
300
Is 39 prime or composite?
39 is COMPOSITE because it has more than 2 factors: 1x39 and 3x13
300

Is 62 a square number? 

NO

400
Find the factors of the number 50
The factors of 50 are: 1, 2, 5, 10, 25, and 50
400
What are the first 7 multiples of the number 30?
The first 7 multiples of the number 30 are: 30, 60, 90, 120, 150, 180, and 210
400
What are 3 prime numbers bigger than 20?
Answers will vary: 23, 29, 31, 37, 41, 43, 47...
400
Which numbers are COMPOSITE: 24, 27, 29, 42, 43, 51
24, 27, 42, and 51 are COMPOSITE because they have more than 2 factors
400

What is the square number of 7?

49

500
Find the factors of the number 100
The factors of 100 are: 1, 2, 4, 5, 10, 20, 25, 50, and 100
500
What are the first 5 multiples of 500?
The first 5 multiples of 500 are: 500, 1000, 1500, 2000, and 2500
500
What are 3 prime numbers bigger than 50?
53, 59, 61, 67, 71, 73, 79, 83, 89, 97...
500
What are all the rectangular arrays for the number 64?
1x64, 2x32, 4x16, 8x8
500

What is the square number of 20? 

20x20 = 400

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