SOLUTION: 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

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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.