# The Sieve of Eratosthenes: Prime Numbers, Multiples & Inverse

Unit 9: Division Unit
Lesson 10 of 21

## Big Idea: Using an interactive website, students use the Sieve of Eratosthenes to help them discover prime numbers, understand divisibility and inverse relationships between multiplication and division.

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Standards:
Subject(s):
Math, Factoring (Number Sense), multiples, Prime and Composite, division, number and
58 minutes

### Mary Ellen Kanthack

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