Test 1 also has 2 solutions.
Thanks William. I changed the first test as well as the example in the problem description.
Summing Digits within Text
Inner product of two vectors
Project Euler: Problem 3, Largest prime factor
Find pairs of primes with the same digit sum
Generate a list of composite numbers
Compute Khinchin's constant
Iterate the sum of divisors and totient
Pick the die most likely to win
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