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Second solution in Clear category for Numbers Factory by 9maksim
def checkio(number):
digits = ""
for i in range(9,1,-1):
while number % i == 0:
digits = str(i)+ digits
number //= i
return int(digits) if number == 1 else 0
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert checkio(20) == 45, "1st example"
assert checkio(21) == 37, "2nd example"
assert checkio(17) == 0, "3rd example"
assert checkio(33) == 0, "4th example"
assert checkio(3125) == 55555, "5th example"
assert checkio(9973) == 0, "6th example"
Dec. 1, 2019
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