Posted by **veronique** on Wednesday, September 26, 2007 at 11:10pm.

I am a prime number between 40 and 50. If you add one to me, the sum of the prime factors of that composite number is 11. What number am I?

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**drwls**, Thursday, September 27, 2007 at 1:12am
The prime numbers between 40 and 50 are 41, 43, and 47. Which one fits the description? Only one of them does.

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**jiana**, Monday, October 22, 2007 at 5:37pm
41 but still dont understand this subject

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