Project Euler Problem 47
I was able to chain this with a previous problem. Probably a suboptimal
solution because of it, but it felt prettier this way.
I was able to add a short-circuited fail case to the is_prime() method, though
Problem:
The first two consecutive numbers to have two distinct prime factors are:
14 = 2 × 7
15 = 3 × 5
The first three consecutive numbers to have three distinct prime factors are:
644 = 2² × 7 × 23
645 = 3 × 5 × 43
646 = 2 × 17 × 19.
Find the first four consecutive integers to have four distinct prime factors
each. What is the first of these numbers?