Circumference is equal to diameter x pi. 47.1 / pi is about 14.99239563925654. 15, using pi=3.14. (nether answer is correct because is irrational)
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Radius = 471/(2*pi) = 74.9619782 or about 75 metres
471 of 1000 in fraction = 471/1000.
471 is a prime number. 471 is a prime number.
471 = CDLXXI
58.875