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Which of these numbers is the odd one out?3313,33133,331333,3313,333,33133,333,331333,333,331and why?
Originally posted by wolfgang59Which of these numbers is the odd one out?3313,33133,331333,3313,333,33133,333,331333,333,331and why?
333,333,331 is divisable by 17. The others are prime numbers ... I hope.
Yep! Pretty amazing .... only just come across this phenomenon.
