Laboratory 5 - Mathematics for Elementary and Middle School Teachers I | MATH 111, Lab Reports of Mathematics

Download Laboratory 5 - Mathematics for Elementary and Middle School Teachers I | MATH 111 and more Lab Reports Mathematics in PDF only on Docsity! Math 111 TR 0930-1120 Summer 2006 TVI Sect. #101 LAB 5 Directions: Answer the following questions on a separate piece of paper. When applicable, show your work to receive full credit. You may work in groups and, if you choose, you may submit one write-up with all the names of your group members. No group should have more than 4 people. 1. Test the number 123,456 for divisibility by 2, 3, 4, 5, 6, 8, 9, 10, and 12. 2. Use a Venn diagram to represent the relationship between the numbers divisible by 8 and the numbers divisible by 16. 3. Prove or find a counterexample: "A number is divisible by 16 if the number is divisible by 2 and 8." 4. Prove or find a counterexample: "A three-digit number is divisible by 7 if 9 times the first digit plus 3 times the second digit plus the last digit is divisible by 7." 5. Find the prime factorization of: (a) 2,310 (b) 16,128 Page 1 of 1