Competition Mathematics Series
Competition Number Theory
Divisibility, Primes, and Competition Problem Solving
AMC 8 ReadyPrime FactorizationNumber PatternsModular Arithmetic
Grades 6–8
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Competition Ready
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Print-Ready PDF
$24.99
About This Book
The essential number theory toolkit for AMC 8 and MathCounts. Covers divisibility rules, prime factorization, GCF/LCM, modular arithmetic, and Diophantine equations — all explained with clear worked examples and hundreds of competition-style practice problems.
Table of Contents
1
Divisibility and Factors
2
Prime Numbers and Factorization
3
Greatest Common Divisor and Least Common Multiple
4
Modular Arithmetic
5
Units Digits and Power Cycles
6
Factorials
7
Digit Properties
8
Number Bases
9
Sequences and Series
10
Consecutive Integers
11
Euler's Totient and Special Numbers
12
Chinese Remainder Theorem and Calendar Arithmetic
13
Diophantine Equations
14
Advanced Number Theory Topics
Free Sample
A free sample for this title is coming soon.
Why This Book?
Infinite Variations
Every practice set uses our AI-powered generator — the same numbers never appear twice.
Complete Solutions
Every problem includes a step-by-step worked solution, not just the final answer.
Competition Aligned
Difficulty and style are calibrated to AMC 8 and MathCounts standards.
Print Ready
Professionally typeset with LaTeX — sharp on any standard printer.