Common Multiples and Common Factors. Factoring - Factors and multiples. Factors and Multiples. Here are the details: Factors "Factors" are the numbers you can multiply together to get another number: 2 and 3 are factors of 6 A number can have many factors.
Example: 3 and 4 are factors of 12, because 3×4=12 Also 2×6=12 so 2 and 6 are also factors of 12, And 1×12=12 so 1 and 12 are factors of 12 as well. AND because multiplying negatives makes a positive, -1, -2, -3, -4, -6 and -12 are also factors of 12 Like this: (-1) × (-12) = 12, (-2) × (-6) = 12, (-3) × (-4) = 12 So ALL the factors of 12 are 1, 2, 3, 4, 6 and 12 AND -1,-2,-3,-4,-6 and -12 Learn about Greatest Common Factor and how to find All Factors of a Number. Multiples A multiple is the result of multiplying a number by an integer (not a fraction). Examples: Multiples of 3: 12 is a multiple of 3, because 3 × 4 = 12 -3 is a multiple of 3, because 3 × -1 = -3 Multiples of 5: 10 is a multiple of 5, because 5 × 2 = 10 But 11 is NOT a multiple of 5 So you must multiply by an integer, but the number that is being multiplied can be anything. Factors and Multiples. Finding factors and multiples of numbers helps solve many mathematical problems.
It is also very useful when working with fractions e.g. adding 1/3 and 1/2. This section includes explanations of what factors and multiples are, prime numbers and composite numbers. Select from the links above or from the menu options to learn more about factors and multiples. There are also worked examples showing how to do prime factorization using factor trees as well using the greatest common factor to solve problems. You'll find the worksheets below under Resources section of HelpingWithMath.com and they are also listed individually on the pages in this section that contain related guidance and worked examples. Number Strips/ Factor Pairs The worksheets below are also listed in the Multiplication Worksheets section.
Pre-Algebra Lessons at Cool math .com - Greatest Common Factors (GCF) and Least Common Multiples (LCM) Factors and Multiples Jeopardy Game. Factors and Multiples Jeopardy is a free online game for middle school students and teachers.
The questions in this game focus on important concepts such as factors, multiples, prime factorization, GCF, and LCM. Important facts you should know that will help with this game. A number is divisible by its factors A number is divisible by 2 if the last digit is even. A number is divisible by 5 if its last digit is 0 or 5. A number is divisible by 3 if the sum of all of its digits is divisible by 3. Visit this link to play other free jeopardy math games. Return from the Factors and Multiples Jeopardy game to the Middle School Math Games webpage.