146.Rearranging a Factorisation
★★★puzzlesJane Street
Write 300,000 as a product of prime factors, then take all the digits appearing in that list of primes and rearrange them to form the smallest possible number. What is that number?
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Factorise fully first and list the primes with multiplicity. All the primes here are single digits, so the digits are just the primes themselves.
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