Question 120169This question is from textbook
: Find the Integers that fit the following conditions:
They are between 44 and 53
The sums of their digits are prime
They have more than three factors
This question is from textbook
Answer by solver91311(24713)   (Show Source):
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The table has the integers and the sum of their digits. Three of these have a sum of digits that is prime, 47, 49, and 52.
47 is prime so it has only two factors, itself and 1
 so it only has two prime factors, 7 and 7, plus itself and 1. But you can't really call 1 a factor, so this has just 3 factors
 and has three prime factors, 2, 2, and 13, plus itself and 1. Therefore 4 factors.
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