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Available Worksheets
Example:
Prime factors of 12
2, 2, 3
2, 3, 3
2, 3, 6
Example:
What is the greatest common factor of 15 and 33?
Factors of 15 → 1, 3, 5, 15
Factors of 33 → 1, 3, 11, 33
Common Factors → 1, 3
Greatest Common Factors → 3
Example:
What are the common factors of 15 and 33?
Factors of 15 → 1, 3, 5, 15
Factors of 33 → 1, 3, 11, 33
Common Factors → 1, 3
Example:
What are the factors of 82?
2
9
41
28
Example:
LCM (least common multiple) of 3 and 6
3
6
9
Example:
Common multiples of 2 and 3
6, 12, 18,...
2, 3, 6, ...
6, 9, 12, ...
Instructions:
1. Read the given question.
2. Find the sum of its prime factors.
3. Click the correct number type.
1. Read the given question.
2. Find the sum of its prime factors.
3. Click the correct number type.
Example:
125 is a number.
composite
prime
Instructions:
1. Read the given question.
2. Evaluate its prime factors.
3. Click the correct type.
1. Read the given question.
2. Evaluate its prime factors.
3. Click the correct type.
Example:
First four multiples of 2
1, 2, 3, 4
2, 4, 5, 10
2, 4, 6, 8
Example:
Prime factors of 12
22, 3
2, 32
62
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