Greatest Common Factor

QuizÂ by Carolyn Kay

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20 questions

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- Q1The factors of 18 and 27 are 1, 2, 3, 6, 9, 18 and 1, 3, 9, 27. This means the greatest common factor of 18 and 27 is...5413945s
- Q2If two numbers are consecutive, then their GCF will be 1 (so for example the GCF of 6 and 7 is 1).truefalseTrue or False45s
- Q3What is the greatest common factor (GCF) of 10 and 15?5123045s
- Q4What is the GCF of 3 and 4?1231445s
- Q5What is the GCF of 4 and 5?5420145s
- Q6What is the GCF of 14 and 28?7214445s
- Q7If one number is a multiple of another, then their GCF will be the same as the smaller number (so the GCF of 20 and 60 would be 20).truefalseTrue or False45s
- Q8What is the greatest common factor of 40 and 24?658245s
- Q9What is the GCF of 6 and 20?245s
- Q10The GCF of 5 and 15 is...17515545s
- Q11The GCF of 12 and 14 is...245s
- Q12The GCF of two numbers is always one of those numbers.falsetrueTrue or False45s
- Q13The GCF of 15 and 25 is...15512545s
- Q14The GCF of two prime numbers is always 1.Falseboolean:True45s
- Q15What is the GCF of 10 and 20?2020011045s