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Divisibility Tests
Factors
Multiples
Types of Numbers (Prime, Square, Cube)
Square Roots & Cube Roots
100
Is 23,456 divisible by 2?
Yes
100
What are the factors of 7?
1, 7
100
5, 10, 15, 20, 25, 30... These numbers are the multiples of...
5
100
What is the first prime number?
2
100
What is the square root of 9?
3
200
Which of these is 147 divisible by? 1 2 3 4 5 6
1 3
200
1, 2, 3, 5, 6, 10, 30 Are these ALL of the factors of 30?
No, we are missing 15
200
What is the 6th multiple of 4?
24
200
How do I find square numbers?
Multiply any number by itself
200
What is the square root of 100?
10
300
Is 55,552 divisible by 5
No
300
These are the factors of which number? (They are not in order!) 12, 3, 4, 8, 6, 1, 24, 2
24
300
What are the first 5 multiples of 15?
15, 30, 45, 60, 75
300
What is the third cube number?
27
300
What is the cube root of 125?
5
400
Is 360,021,004 divisible by 3?
No
400
List the factors of 32
1, 2, 3, 4, 6, 12
400
What number is a multiple of 6 and 7?
42
400
List the first 7 primes!
2, 3, 5, 7, 11, 13, 17
400
What is the square root of 169?
13
500
Is 345 divisible by 2, 3 and/or 5
Divisible by 3 and 5 only
500
List the factors of 40. Which of these are prime numbers?
1, 2, 4, 5, 8, 10, 20, 40 Only 2 and 5 are prime
500
How many multiples does 10 have?
Infinite!
500
Name a number which is a square number AND a cube number
64
500
Estimate the square root of 11
3.32