  PRE-ALGEBRA
ALGEBRA 1
GEOMETRY
ALGEBRA 2
TRIGONOMETRY
PRE-CALCULUS
CALCULUS    Pre-Algebra, 2010 PAGE: 494 SET: Exercises PROBLEM: 1
Please look in your text book for this problem Statement  Method 1:

List the factors of each number.

Factors of 28: 2, 4, 7, 14, 28

Factors of 42: 2, 3, 6, 7, 14, 21, 42

Identify the greatest common factor.

The greatest common factor of 28 and 42 is 14. Method 2:

Write the prime factorization of each  number.

28 =  2 × 2 × 7.

42 =  2 × 3 × 7.

The GCF is the product of the common prime factors in each number.

GCF = 2 × 7 = 14.

The greatest common factor of 28 and 42 is 14. The greatest common factor of 28 and 42 is 14. TESTIMONIALS
 "I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!" June Barnett "Your site is amazing! It helped me get through Algebra." Charles "My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful." Dan Pease
 Tweets by @mathskeydotcom

QUESTIONS? LET US HELP.
mathskey.com is not affiliated with any Publisher, Book cover, Title, Author names appear for reference only