Prime and Composite (5.5 c)
- 1. Which is a prime factor of the composite number 16?
A) 8 B) 2 C) 4 D) 3
- 2. Which is a prime factor of the composite number 24?
A) 4 B) 8 C) 3 D) 9
- 3. Which is a prime factor of the composite number 36?
A) 9 B) 3 C) 23 D) 13
- 4. Which is a prime factor of the composite number 45?
A) 15 B) 2 C) 9 D) 5
- 5. Which is a prime factor of the composite number 20?
A) 10 B) 4 C) 3 D) 5
- 6. Which is a prime factor of the composite number 39?
A) 13 B) 11 C) 6 D) 9
- 7. Which is a prime factor of the composite number 254?
A) 103 B) 117 C) 127 D) 133
- 8. Which is a prime factor of the composite number 291?
A) 73 B) 117 C) 97 D) 87
- 9. Which is a prime factor of the composite number 66?
A) 5 B) 6 C) 11 D) 7
- 10. Which is a prime factor of the composite number 78?
A) 34 B) 39 C) 37 D) 13
- 11. Which is a prime factor of the composite number 147?
A) 49 B) 7 C) 9 D) 5
- 12. Which is a prime factor of the composite number 57?
A) 19 B) 9 C) 29 D) 39
|
Altres proves d'interés :