Project-Euler/problem_08.py at main · bklua/Project-Euler · GitHub

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string1 = ('73167176531330624919225119674426574742355349194934' +
'96983520312774506326239578318016984801869478851843' +
'85861560789112949495459501737958331952853208805511' +
'12540698747158523863050715693290963295227443043557' +
'66896648950445244523161731856403098711121722383113' +
'62229893423380308135336276614282806444486645238749' +
'30358907296290491560440772390713810515859307960866' +
'70172427121883998797908792274921901699720888093776' +
'65727333001053367881220235421809751254540594752243' +
'52584907711670556013604839586446706324415722155397' +
'53697817977846174064955149290862569321978468622482' +
'83972241375657056057490261407972968652414535100474' +
'82166370484403199890008895243450658541227588666881' +
'16427171479924442928230863465674813919123162824586' +
'17866458359124566529476545682848912883142607690042' +
'24219022671055626321111109370544217506941658960408' +
'07198403850962455444362981230987879927244284909188' +
'84580156166097919133875499200524063689912560717606' +
'05886116467109405077541002256983155200055935729725' +
'71636269561882670428252483600823257530420752963450')

digit = 13
greatest_product = 0

for n in range(len(string1)-digit+1):

    product = 1
    for i in string1[n:n+digit]:
        product *= int(i)

    if greatest_product <= product:
        greatest_product = product

print(greatest_product)