Question

Express each of the following numbers using exponential notation:

1. 512
2. 343
3. 729
4. 3125

Answer 1

(i) $512 = 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 = 2^9$

---

(ii) $343 = 7 \times 7 \times 7 = 7^3$

---

(iii) $729 = 3 \times 3 \times 3 \times 3 \times 3 \times 3 = 3^6$

---

(iv) $3125 = 5 \times 5 \times 5 \times 5 \times 5 = 5^5$