Revision: 10318
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at December 18, 2008 13:03 by theobriscoe
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def factorial2(BigInteger n){ BigInteger answer = BigInteger.ONE; for (int i=1; i<=n; i++) { answer = answer.multiply(BigInteger.valueOf(i)); } return answer } def sumDigits(BigInteger n){ def digitString = n.toString(); def digitArray = [] digitString.each{ i -> digitArray.add( i.toBigInteger() ) } return digitArray.sum() }
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Find the sum of digits in 100! n! means n × (n − 1) × ... × 3 × 2 × 1
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Find the sum of digits in 100! (Factorial)
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Groovy