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## Highest Common Factor (HCF)

Created by Quizmagic Team on Feb 14, 2014 12:37 PM
```In mathematics, the Highest Common Factor (HCF) is also known as the Greatest Common Divisor (GCD) or Greatest Common Factor (GCF). HCF or GCD of two or more positive integers is the largest integer that divides all the integers without leaving a remainder. It is the highest number that can divide the given two or more numbers.

HCF of 20 and 30 is 10.
Factors of 20 is 1, 2, 4, 5, 10, 20 and Factors of 30 is 1, 2, 3, 5, 6, 10, 15, 30. Among the factors 10 is the common highest factor. Therefore, 10 is the HCF of 20 and 30.

Try this quiz to find out how much you know about HCF.```
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 Questions 12 Minutes 8 High Score 142 00:40 Quiz Played 655 times
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### Sample Questions

Question 1
What is the Highest Common Factor (HCF) of 24 and 88?
 4 8 12 3
Question 2
What is the Highest Common Factor (HCF) of 37 and 29?
 7 3 1 9
Question 3
What is the Highest Common Factor (HCF) of 42 and 63?
 3 9 7 14
Question 4
What is the Highest Common Factor (HCF) of 63 and 21?
 7 21 9 3
Question 5
What is the Highest Common Factor (HCF) of 65 and 39?
 3 13 7 9
Question 6
What is the Highest Common Factor (HCF) of 60 and 84?
 12 6 18 3
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