Mathematics
The number of distinct prime factors of the smallest 5-digit number is
2
4
6
8
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Answer
The smallest 5-digit number is 10000.
Prime factorisation: 10000 = 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5.
The distinct prime factors are 2 and 5 — that is 2 distinct prime factors.
Hence, option 1 is the correct option.
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