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Can this problem be solved quicker? [#permalink]
03 Jun 2011, 09:43
0% (00:00) correct
100% (01:41) wrong based on 7 sessions
"The product of all the prime numbers less than 20 in closest to which of the following powers? A) 10^9 B) 10^8 C) 10^7 D) 10^6 E) 10^5 The book says to take all the prime numbers less than 20 and multiply them, which is what I originally did, I was just wondering if there is a quicker way to do this. Thanks!