If `Y={x|x` is a positive factor of the number `2^(p-1)(2^p-1)` where `2^p-1` is a prime number} Write Y in roaster form.

Explanation

To write the set \( Y \) in roster form, we need to identify all the positive factors of the number \( 2^{p-1}(2^p - 1) \), where \( 2^p - 1 \) is a prime number.

### Step-by-Step Solution:

1. **Identify the expression**: The expression given is \( 2^{p-1}(2^p - 1) \). Here, \( 2^p - 1 \) is specified to be a prime number.

2. **Understand the factors of a prime number**: Since \( 2^p - 1 \) is a prime number, its only positive factors are \( 1 \) and \( 2^p - 1 \).

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