hatemath3 hatemath3

03-12-2015
Mathematics

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Does reversing the order of digits of a 2 digit prime number always result in a prime number

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aryn814 aryn814

03-12-2015

No, for example, if you had the prime number 23, and you switched the numbers around, it is 32. 32 is not a prime number.

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Аноним Аноним

03-12-2015

no
for example:

29 if you switch the digits it becomes 92 and 92 is composite because 2x46=92

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