euler7.rb

x = 7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450
xarr = x.to_s.split('')
xarr.map! {|i| i.to_i}
length = 13
#create function to check product of 13 consecutive integers
def product_thirteen(array, index)
	prod = 1
	i = index
	while i < index+13
		prod *= array[i]
		i+=1
	end
	puts prod
	return prod
end

max_prod = 0
index = 0
j = 0 
while j < 988
	x = product_thirteen(xarr, j)
	if x > max_prod
		max_prod = x
		index = j
		winning_array = xarr[j..(j+12)]
	end
	j += 1
end

puts "MAX PROD: #{max_prod}"
puts winning_array