Pandigital prime: Difference between revisions
added optional use of 0
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We shall say that an n-digit number is pandigital if it makes use of all the digits 1 to n exactly once. For example, 2143 is a 4-digit pandigital and is also prime.
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What is the largest '''
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Further say that an n+1-digit number is pandigital0 if it makes use of all the digits 0 to n exactly once. For example 10243 is a 5-digit pandigital0 and is also prime.
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What is the largest '''pandigital0 prime''' that exists?
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Assume that the problem is talking about '''decimal''' numbers.
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