# Download PDF by Ivan Morton Niven, Herbert S. Zuckerman, Hugh L. Montgomery: An Introduction to the Theory of Numbers, 5th Edition By Ivan Morton Niven, Herbert S. Zuckerman, Hugh L. Montgomery

ISBN-10: 0471625469

ISBN-13: 9780471625469

The 5th version of 1 of the normal works on quantity idea, written via internationally-recognized mathematicians. Chapters are rather self-contained for better flexibility. New positive aspects comprise accelerated remedy of the binomial theorem, options of numerical calculation and a bit on public key cryptography. includes an excellent set of difficulties.

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Additional resources for An Introduction to the Theory of Numbers, 5th Edition

Sample text

The nth row has n entries, namely the coefficients in the binomial expansion of (x + y)n -1. PROBLEMS 1. Use the binomial theorem to show that t(~)=2n. k=O Can you give a combinatorial proof of this? 2. Show that if n ~ 1 then t (_l)k( k=O 3. (a) By comparing the coefficient of m+n L k=O show that (m: n)zk = ~) = Zk O. /= ~ u subsets N of . / that contain k elements and that also have the n ~ contains elements is ( ~ Interproperty that pret this identity combinatorially. (c) Show that for n ~ 0, (b) Let ~ and r.

Thus, there are 12 primes p < 257 such that M p is a prime. It is now known that M p is a prime in the following additional cases, p = 521,607, 1279,2203,2281,3217, 4253, 4423, 9689, 9941, 11213, 19937, 21701, 23209, 44497, 86243, 110503, 132049, 216091. The Mersenne prime M 2 1609 I is the largest specific number that is known to be prime. ) Let positive integers g and I be given with gil. ) Let k ;;;. 3 be a fixed integer. Find all sets al> a2" . " ak of positive integers such that the sum of any triplet is divisible by each member of the triplet.

Then the binomial coefficient (~) is given by the formula a) (k = a( a - 1) ... (a - k + 1) k! Suppose that nand k are both integers. From the formula we see that n! ,whereasifO~n