Factors Multiples Primes and Composites Numbers

Factors Multiples Primes and Composites Numbers

#### Which of the following is a composite number? 1. [ ] 7 2. [ ] 11 3. [x] 14 4. [ ] 17 #### Which of the following numbers is a prime number? 1. [ ] 15 2. [x] 17 3. [ ] 21 4. [ ] 16 #### Which of the following numbers is a factor of 48? 1. [x] 6 2. [ ] 9 3. [ ] 10 4. [ ] 7 #### What is the sum of all prime numbers less than 20? 1. [ ] 68 2. [x] 77 3. [ ] 99 4. [ ] 88 #### A student was asked to divide a number by 6 and add 12 to the quotient. He, however, first added 12 to the numbers and then divided it by 6, getting 112 as the answer. The correct answer should have been? 1. [ ] 130 2. [ ] 123 3. [x] 122 4. [ ] 120