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Find that decade (Posted on 2014-01-06) Difficulty: 2 of 5
There has been only a single instance in the course of American history (1776 AD onwards) wherein there was a decade in which four of the years were prime numbers. Find that decade.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
re(2): Look Ma, no primes!Steve Herman2014-01-06 19:39:23
Hints/Tipsre: Look Ma, no primes!Ady TZIDON2014-01-06 14:36:19
Look Ma, no primes!Steve Herman2014-01-06 14:09:02
SolutionspoilerAdy TZIDON2014-01-06 10:18:21
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