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Results tagged with primes
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user 21
For challenges about identifying and manipulating prime numbers
3
votes
Sum of primes between given range
Ruby 1.9, 63 chars
require'prime';p=->a,b{Prime.each(b).select{|x|x>a}.inject(:+)}
Use like this
p[1,100] #=> 1060
Using the Prime class feels like cheating, but since the Mathematica solutions used …
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