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Given the digits 11, 33, 44, 77, and 88, pick four of them to form 22 two-digit prime numbers. What is the largest possible product of the two numbers (do NOT include a comma in your answer)?

 Oct 19, 2019
 #1
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Are your "digits" 11, 33, 44, 77 and 88? OR 1, 3, 4, 7 and 8? I suspect the latter !

 

2 two-digit primes =83 x 71 =5893

 Oct 20, 2019
 #2
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Sorry, CORRECTION of the above:83 x 73 =6059

 Oct 20, 2019

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