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user 171662
12
votes
Multiplicative Persistence - Highest persistence found?
It can be run online in this SageMathCell.
def digits(n):
d = []
while n:
n, remainder = divmod(n, 10)
d.append(remainder)
return d
def multiplicative_persistence(n … ):
i = 0
print("%d: %d" % (i,n))
while n>=10:
n = prod(digits(n))
i += 1
print("%d: %d" % (i,n))
print("It has multiplicative persistence %d\n" % (i))
multiplicative_persistence …
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