Number Theory

Number theory is introduced in this unit. Elementary number theory is the study of whole numbers and relations between them. Choose from the menu below, or try our other topics.

Number Theory	Access	Description
Factors and GCF		To define factor and greatest common factor. To find all factors of a whole number. To find the GCF of two or more whole numbers.
Multiples and LCM		To define multiple and least common multiple. To find multiples of whole numbers. To find the LCM of two or more whole numbers.
Prime and Composite Numbers		To define primes and composites. To determine if a whole number is prime or composite by examining its factors.
Divisibility Tests		To determine if larger whole numbers are prime or composite by using divisibility tests for 2, 3, 4, 5, 6, 9 and 10.
Exponents		To define exponent, base and power. To learn exponential notation. To read and write numbers in exponential form. To convert between standard, factor and exponential form.
Patterns and Exponents		To recognize patterns with exponents. To predict the next term in a sequence of numbers written in exponential form.
Practice Exercises		To complete 10 additional exercises as practice with number theory. To assess students' understanding of all theory presented.
Challenge Exercises		To solve 10 additional problems that challenge students' understanding of all theory presented. To hone students' problem-solving skills.
Solutions		To review complete solutions to all exercises in this unit number theory unit.

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