HCF
The highest common factor (HCF) of two whole numbers is the largest whole number which is a factor of both.
Consider the numbers 12 and 15:
The factors of 12 are : 1, 2, 3, 4, 6, 12
The factors of 15 are : 1, 3, 5, 15
1 and 3 are the only common factors (numbers which are factors of both 12 and 15). Therefore, the highest common factor of 12 and 15 is 3.
Video - LCM and HCF
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Test Prep Lessons With Video Lessons and Explained MCQ
Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.
Each exam has different types of math sections. The sections may be called Mathematics or Arithmetic Problem Solving. In the math section of the exam, you will be tested on basic math skills such as addition, subtraction, multiplication, and division. Some sections may include fractions, decimals, graphs and percentages. All questions will be a multiple choice format. The amount of math questions on each test will vary.