Answer:
6. C
7. C
8. C
9. P
10. C
Hope it helps
1. 15 = C
2. 39 = C
3. 55 = C
4. 23 = P
5. 40 = C
How to know if a number is prime or composite?
→ A prime number has exactly two factors — 1 and the number itself. For example, the number 5 is prime because its only two factors are 1 and 5. A composite number has at least three factors. For example, the number 4 has three factors: 1, 2, and 4.
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Answers & Comments
Answer:
6. C
7. C
8. C
9. P
10. C
Hope it helps
1. 15 = C
2. 39 = C
3. 55 = C
4. 23 = P
5. 40 = C
How to know if a number is prime or composite?
→ A prime number has exactly two factors — 1 and the number itself. For example, the number 5 is prime because its only two factors are 1 and 5. A composite number has at least three factors. For example, the number 4 has three factors: 1, 2, and 4.