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1. How many odd, positive divisors dose 540 have ?
- A. 6
- B. 6
- C. 6
- D. 6
Answer: Option B
Explanation:
1×540 = 540
2×270 = 540
3×180 = 540
4×135 = 540
5×108 = 540
6×90 = 540
9×60 = 540
10×54 = 540
12×45 = 540
15×36 = 540
18×30 = 540
20×27 = 540
So the odd divisors are 1, 3, 5, 9, 15, 27, 45, 135.
So the number of odd divisors is 8.
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