Factor Rainbow Fun!
Explore factor pairs and composite numbers using the factor rainbow method with this engaging Grade 8 math worksheet.
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Factor Rainbow Fun!
Name:
Date:
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A factor rainbow visually represents all the factor pairs of a number. Each factor pair is connected by an arc, forming a 'rainbow'. Complete the exercises below by identifying factors and constructing factor rainbows.
1. List all the factors of 24:
2. List all the factors of 36:
Complete the factor pairs for each number.
3. For the number 40: (1, ), (2, ), (4, ), (5, )
4. For the number 60: (1, ), (2, ), (3, ), (4, ), (5, ), (6, )
5. Draw a factor rainbow for the number 18 in the space below. List all the factors first, then connect the factor pairs with arcs.
Factors of 18:
6. Which of the following numbers has an odd number of factors?
12
16
20
24
7. All prime numbers have exactly two factors.
True
False
8. The number 1 is a prime number.
True
False
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