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- 1. Fill in the Blank
A prime number has exactly this many factors.
- 2. Fill in the Blank
All numbers share one common factor. It is ____
- 3. Multiple Choice
The prime factorization of 12 is
12
- 4. Multiple Choice
The prime factorization of 16 is
- 5. Multiple Choice
Choose the list that has an accurate list of the prime numbers from 1 to 20
2, 3, 5, 7, 11, 13, 17, 19
1, 2, 3, 5, 7, 11, 13, 17, 19
2, 3, 4, 5, 7, 11, 13, 15, 17, 19
2, 3, 5, 7, 17, 19
- 6. Multiple Choice
Which of these is a list of all the factors of 24?
1, 2, 12, 24
1, 2, 3, 4, 6, 8, 12, 24
1, 2, 3, 4, 5, 6, 7, 8, 12, 24
1, 2, 4, 6, 12, 24
- 7. Fill in the Blank
The number 2 has an infinite number of multiples, but has only 2 factors. Write T or F for true or false
- 8. Multiple Choice
Find the list of the first 5 multiples of 3.
3, 6, 12, 24, 48
3, 9, 27, 81, 243
3, 4, 5, 6, 7
3, 6, 9, 12, 15
- 9. Fill in the Blank
The LCM of 2 and 5 is
- 10. Fill in the Blank
The LCM of 10 and 20 is
- 11. Fill in the Blank
The GCF of 30 and 50 is
- 12. Fill in the Blank
The GCF of 12 and 18 is
- 13. Multiple Choice
Which of the following is FALSE?
GCF stands for Greatest Common Factor
1 is a prime number
Whole numbers are {0, 1, 2, 3, 4,....}
Prime numbers have exactly two factors.
- 14. Fill in the Blank
LCM, in math, stands for
- 15. Multiple Choice
Which of the following is NOT a multiple of 9?
81
78
72
18
- 16. Multiple Choice
Which of the following is FALSE?
GCF stands for Greatest Common Factor
1 is a prime number
Whole numbers are {0, 1, 2, 3, 4,....}
Prime numbers have exactly two factors.
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