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Math · Factors & Multiples

Prime Factor Fortress

Break the Composite King's army into primes to defend the fortress, with a factor tree students build by tapping.

Grade 6Fortress defense1–6 players or teamsNo student loginsWorks offline

Try it free with your class: the demo runs right in your browser for 5 questions or 5 minutes, whichever comes first. No sign-up needed.

Or get every game, including all future games, with the All-Access Teacher License for $150.

Screenshot of Prime Factor Fortress in the middle of a game

What students practice

Exponents, factor trees, prime factorization, GCF and LCM

Great for

Whole-class review on the smartboard, math centers, test prep, early finishers and sub plans. No prep and no student logins.

Standards

OAS 6.N.2.4–2.6

Common Core: 4.OA.B.4 · 6.NS.B.4 · 6.EE.A.1

More games for these standards and topics

How it works

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