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Type: Multiple-Choice
Category: Primes, Factors, and Multiples
Level: Grade 6
Standards: 6.NS.B.4
Author: pmcdonagh
Last Modified: 7 years ago

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Primes, Factors, and Multiples Question

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Grade 6 Primes, Factors, and Multiples CCSS: 6.NS.B.4

Which pair of numbers has a greatest common factor of 1?
  1. 7 and 20
  2. 3 and 45
  3. 15 and 18
  4. 4 and 16