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Grade 6Factors, Multiples & Primes

6.NS.B.4

Find the GCF and LCM, and factor a sum like 36 + 8 as 4(9 + 2).

Worksheets for this standard 13 topics

Practice & models 9
Greatest Common Factor (GCF)4 ways
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Real-World GCF1 way
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Least Common Multiple (LCM)3 ways
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Real-World LCM1 way
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Factorization6 ways
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Proper Factors4 ways
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Prime Numbers1 way
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Factor & Multiple Reasoning4 ways
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Equivalent Fractions III3 ways
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Games & labs 4
Math Lab: The Locker Puzzle2 ways
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The Factor Game4 ways
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Number Riddles2 ways
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Divisibility Rules6 ways
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The standard, officially

Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12. Use the distributive property to express a sum of two whole numbers 1–100 with a common factor as a multiple of a sum of two whole numbers with no common factor. For example, express 36 + 8 as 4 (9 + 2).

Builds on
4.OA.B.4Find factors, multiples, and primes 5.OA.A.2Write and interpret expressions
Leads to
6.EE.A.3Rewrite expressions in equal forms 6.EE.A.4Identify equivalent expressions