Prime & Composite Numbers

Watch the video for a refresher on prime and composite numbers. Sort the numbers as Prime or Composite. Prime 2 37 53 17 29 Composite 57 15 32 81 25 Which of the following correctly describes the number 1? 1 is a Prime Number 1 is a Composite Number Both a b are correct None of these are correct How many prime numbers are between 40 and 50? 2 3 5 10 Mr. Walker teaches 4 reading classes every day. The chart below shows the number of students in each class.Which two classes, when added together, have a prime number of students? Class 1 and Class 2 Class 1 and Class 3 Class 2 and Class 3 Class 3 and Class 4 Elliot's combination to his locker is a 4-digit number. All the digits in the combination are prime numbers. What is Elliot's combination? 5-4-3-2 7-3-2-1 9-7-5-3 7-5-3-2 The jersey numbers for the starting five basketball players at Queens Intermediate are shown below. Justin- 25 Andrew- 31 Juan- 43 Devon- 52Which players jersey numbers represent a prime number? Justin and Devon only Devon only Andrew and Juan only Andrew only Clara was supposed to shade all the prime numbers on a chart. Her finished chart is shown below.Which of the following best describes Clara's chart? Clara shaded some composite numbers. Clara did not shade all the prime numbers. Clara correctly shaded all the prime numbers. Clara should not have shaded the numbers 11 and 19. Jeff's current age is a prime number. The age of his younger brother, Jeb, is also a prime number. If both of the brothers are between 10 and 16 years old, how old are both of the brothers? 11 years and 16 years 11 years and 13 years 12 years and 15 years 13 years and 16 years Which list below only shows composite numbers? 18, 92, 95 91, 97, 95 37, 47, 67 2, 4, 8 Which list below only shows prime numbers? 17, 19, 27 21, 31, 41 41, 61, 71 45, 55, 65 Identify each statement as true or false. True 0 is neither a prime number or a composite number. All even numbers other than the number 2 are composite numbers. False The number 1 is a prime number. All odd numbers are prime numbers. How many of the numbers shown below are prime numbers? 2 3 4 5 6 7 8 9 10 None of the numbers are prime. 4 of the numbers are prime. 5 of the numbers are prime. 3 of the numbers are prime. Which definition below best describes a prime number? A number greater than 1 that only has factors of 1 and itself. Only odd numbers. Only even numbers. A number that has factors other than 1 and itself. The table below shows the number of girls and boys who tried out for the soccer team.Which grade had a prime number of girls and a prime number of boys try out for the soccer team? 5 6 7 8 The Eagles football team uses only composite numbers on their jerseys. Each of the following numbers could have been on a jersey EXCEPT-- 27 37 81 93 Math Challenge (this will not count against you if you get it wrong):Marco is in elementary school. His father is 30 years older than Marco, and his mother is 4 years younger than his father. The ages of Marco, his mother, and his father are all prime numbers. What are their ages? Marco is 11 years old.Marco's father is 41 years old.Marco's mother is 37 years old.