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eliannelavoie/projectEuler45.py

Created April 17, 2018 13:40
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projectEuler45.py
from math import sqrt
def isPentagonal(n):
return (1/6*(sqrt(24*n+1)+1)).is_integer()
i = 40756
while True:
h = i*(2*i-1)
if (isPentagonal(h)):
print(h)
break;
i+=1
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