4 Write the prime factors of these numbers in index form \( \begin{array}{ll}\text { a) } 20 & \text { b) } 96 \text { eog } 2 a)=20 \\ \text { c) } 36 & \text { d) } 100\end{array} \)

To express the prime factors of the given numbers in index form: a) For 20, the prime factorization is \(2^2 \times 5^1\). b) For 96, it can be broken down into \(2^5 \times 3^1\). c) For 36, the prime factors are \(2^2 \times 3^2\). d) For 100, you can write it as \(2^2 \times 5^2\). The index form condenses the factors nicely, making them easier to work with in calculations!