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Harshad number
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1	First round Dutch Mathematical Olympiad 18 January – 28 January 2016 Solutions A1. Add to Reading List Source URL: www.wiskundeolympiade.nl Language: English - Date: 2016-01-29 04:41:42 Mathematics Elementary arithmetic Mathematical notation Group theory Number Addition Divisibility rule Harshad number
2	Theorem 1. If F (n) is the number of Friedman numbers in the range [1, n], then lim F (n)/n = 1. n→∞ In order to prove this claim, we begin by defining a class of integers that will be used throughout the proof. Add to Reading List Source URL: www2.stetson.edu Language: English - Date: 2010-06-20 20:24:24 Mathematics Discrete mathematics Combinatorics Friedman number Factorial Permutation Integer Combination Pi Transposable integer Harshad number
3	You Know the Answer worksheet 2, candidates Add to Reading List Source URL: www.tlsbooks.com Language: English - Date: 2013-10-19 22:30:53 Number theory Harshad number Signed overpunch Mathematics Elementary arithmetic Plus and minus signs
4	Central Utah Science & Engineering Fair 2009 Category: Mathematics Senior Division Table Number: H0806 Add to Reading List Source URL: cusef.byu.edu Language: English - Date: 2010-07-28 20:01:03 Harshad number Number Digit sum 2 1 Dice Pi Addition Randomness Mathematics Fibonacci numbers Number theory
5	ON CONSECUTIVE NIVEN NUMBERS Curtis Cooper and Robert E. Kennedy Department of Mathematics, Central Missouri State University, Warrensburg, MO 64093 Add to Reading List Source URL: www.fq.math.ca Language: English - Date: 2010-09-07 15:51:03 Modular arithmetic Harshad number Linear congruence theorem Chinese remainder theorem Floor and ceiling functions Euclidean algorithm Quadratic residue Mathematics Number theory Abstract algebra
6	SEQUENCES OF CONSECUTIVE n-NIVEN NUMBERS* H. G. Grundmae Department of Mathematics, Bryn Mawr College, Bryn Mawr, PA 19010 Add to Reading List Source URL: www.fq.math.ca Language: English - Date: 2010-09-07 16:08:08 Harshad number Digit sum Sequence Pi Niven Ivan M. Niven Fermat number Mathematics Number theory Integer sequences

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