Author: rahul.s Subject: product of prime #’s Posted: Thu Jan 28, 2010 5:30 am (GMT -8) The product of all the prime numbers less than 20 is closest to which of the following powers of 10 ? A) 10^9 B) 10^8 C) 10^7 D) 10^6 E) 10^5 OA: C Source: OG OG’s explanation: The prime numbers less than 20 are 2, 3, 5, 7, 11, 13, 17, and 19. Th eir product is 9,699,690 (arrived at as follows: 2*3*5*7*11*13*17*19 = 9,699,690)

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Problem Solving :: product of prime #’s