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Find the odd positive integer of the number 6500.(a) 43(b) 17(c) 12(d) 87I had been asked this question by my college professor while I was bunking the class.This question is from Counting topic in division Counting of Discrete Mathematics

Answer»

Correct answer is (c) 12

Easy explanation: To find the NUMBER of odd factors, we can exclude any POWER of 2 and do the same. So, for 6500, we have (5 + 1)(1 + 1) = 6 * 2 = 12 odd POSITIVE factors.



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