Problem 83. Prime factor digits
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I think the explanation in the problem statement is a bit sparse. The numbers in the table do not represent prime numbers per se: they represent indices on prime numbers, whose ultimate product yields the value n.
See http://mathworld.wolfram.com/PrimeFactorization.html
The in-built function factors() was pretty helpful for this problem :)
I'm sure Test 4 & 6 are incorrect!
@Peter, what makes you think so?
@Dyuman Joshi,
I was wrong! My thinking was wrong!
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