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Divisibility Rules
Prime or Composite
Prime Factorization
Vocabulary
Math Puzzlers
100
The number must end in 0.
What is the Divisibility Rule for 10?
100
82
What is a composite number?
100
57
What is 3 x 19?
100
A whole number greater than 1 that has exactly two factors.
What is a prime number?
100
The time it is right now.
What is _:_ _ am?
200
When the rules for 2 and 3, then this rule works too.
What is the Divisibility Rule for 6?
200
53
What is a prime number?
200
88
What is 2 x 2 x 2 x 11?
200
A composite number can be written as the product of its prime factors after completing this.
What is prime factorization?
200
The number of quarters ($ .25) in a $1.50?
What is 6?
300
36 has 3 divisibility rules that work.
What are the Divisibility Rules for 2, 3, and 6?
300
113
What is a prime number?
300
60
What is 2 x 2 x 3 x 5?
300
A whole number that has more than two factors.
What is a composite number?
300
The number of hours in 3 days.
What are 72 hours?
400
40 has 4 divisibility rules that work.
What are the divisibility rules for 2, 4, 5, and 10?
400
77
What is a composite number?
400
72
What is 2 x 2 x 2 x 3 x 3?
400
When a number goes into another evenly.
What is divisible?
400
The number of days in December.
What is 31 days?
500
The number must end in 5 or 0.
What is the Divisibility Rule for 5?
500
1
What is neither?
500
105
What is 3 x 5 x 7
500
Used to easily identify if numbers are divisible.
What are Divisibility Rules?
500
The number of inches in one foot.
What is 12 inches?