33 lines
843 B
Python
33 lines
843 B
Python
from tools import number_theory
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def unit(p):
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base = 1
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loop = 1
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while True:
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base %= p
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if not base:
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return loop
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base = 10 * base + 1
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loop += 1
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def is_dec(num):
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while not num % 2:
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num //= 2
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while not num % 5:
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num //= 5
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return 1 == num
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def statistic(limit):
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prime = number_theory.make_prime(limit)
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next(prime)
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next(prime)
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next(prime)
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for p in prime:
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if is_dec(unit(p)):
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yield p
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#print(list(statistic(100000)))
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get = [11, 17, 41, 73, 101, 137, 251, 257, 271, 353, 401, 449, 641, 751, 1201, 1409, 1601, 3541, 4001, 4801, 5051, 9091, 10753, 15361, 16001, 19841, 21001, 21401, 24001, 25601, 27961, 37501, 40961, 43201, 60101, 62501, 65537, 69857, 76001, 76801]
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print(sum(set(number_theory.make_prime(100000)) - set(get)))
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