**No. 19 (a) Find the prime factorisation of 12600 and write your answer in index notation**

**No. 19 (b) Hence, evaluate each of the following and express your answer in prime factoristation form.**

**No. 20(a) Simplify and express (2^8 x 5^7) / 20 in prime factorisation form**.

**No. 20(b) Hence, find in prime factorisation form**

**(i) the positive square root of**

**(2^8 x 5^7) / 20**

**(ii) the cube root of**

**(2^8 x 5^7) / 20**

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