Transum Mathematics Puzzles
Prime Permutations
- Autor: Vários
- Narrador: Vários
- Editor: Podcast
- Duración: 0:12:50
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Sinopsis
Of all the permutations of 1 to 9 used to make nine-digit numbers, how many are prime?
Of all the permutations of 1 to 9 used to make nine-digit numbers, how many are prime?