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Question
The number of distinct prime factors of the largest 4-digit number is ______.
Options
2
3
5
11
Solution
The number of distinct prime factors of the largest 4-digit number is 3.
Explanation:
We know that, largest 4-digit number = 9999 Prime factors of 9999
3 |
9999 |
3 |
3333 |
11 |
1111 |
101 |
101 |
1 |
i.e. 9999 = 32 × 11 × 101
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