Using prime factorization method, find which of the following numbers are perfect squares ? 189, 225, 2048, 343, 441, 2916, 11025, 3549

Explanation

To determine which of the given numbers are perfect squares using the prime factorization method, we will follow these steps:

### Step-by-Step Solution:

1. **Factorize 189:**
- Start dividing by the smallest prime number:
- 189 ÷ 3 = 63
- 63 ÷ 3 = 21
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