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Question
The number of distinct prime factors of the smallest 5-digit number is ______.
Options
2
4
6
8
Solution
The number of distinct prime factors of the smallest 5-digit number is 2.
Explanation:
We know that, smallest 5-digit number = 10000 Prime factors of 10000
2 |
1000 |
2 |
5000 |
2 |
2500 |
2 |
1250 |
5 |
625 |
5 |
125 |
5 |
25 |
5 |
5 |
1 |
i.e. 10000 = 24 × 54
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