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Hanley Rd, Suite St. Louis, MO Subject optional. Email address: Your name:. Example Question 5 : Integers. Possible Answers: Correct answer: 8. Explanation : First, find all of the factors of each number. Report an Error. Example Question 6 : Integers. Correct answer: 6. Explanation : The greatest common factor is the greatest factor that divides both numbers. Example Question 7 : Integers.
Possible Answers:. It is a common factor when it is a factor of two or more numbers. Example: The common factors of 15, 30 and Factors of 15 are 1, 3, 5, and 15 Factors of 30 are 1, 2, 3, 5, 6, 10, 15 and 30 Factors of are 1, 3, 5, 7, 15, 21, 35 and The factors that are common to all three numbers are 1, 3, 5 and 15 In other words, the common factors of 15, 30 and are 1, 3, 5 and The "Greatest Common Factor" is the largest of the common factors of two or more numbers.
Example: How can we simplify 12 30? The Greatest Common Factor of 12 and 30 is 6. We can: find all factors of both numbers use the All Factors Calculator , then find the ones that are common to both, and then choose the greatest. The lowest x exponent is 1. The lowest y exponent is also 1.
There is no z in two of the terms so z is not a common factor. That means the greatest common factor among the three terms is 1xy or xy. Not Helpful 18 Helpful The average person is never likely to use prime numbers. They do have certain applications within science and mathematics. Not Helpful 19 Helpful Not Helpful 15 Helpful One is not a prime, but it is commonly confused with one. One is actually referred to as a unit. Not Helpful 37 Helpful Finding the greatest common factor means selecting the largest one.
Not Helpful 9 Helpful Unless you can do the prime factorization in your head, Euclid's method is much faster and easier. Not Helpful 6 Helpful Not Helpful 3 Helpful 6. The GCF of those numbers is Not Helpful 0 Helpful 2. Include your email address to get a message when this question is answered.
A prime number is a number that can only be divided by one and itself. Helpful 0 Not Helpful 0. Did you know that the mathematician Euclid of the third century B. Submit a Tip All tip submissions are carefully reviewed before being published. Related wikiHows How to. How to. Co-authors: Updated: October 27,
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