Prime numbers
10 is composite. What factors of 10 are prime?
2 and 5
12 is composite. What are the factors of 12?
1, 2, 3, 4, 6 and 12
What two numbers are prime
5,10,15,7
5, 7
Is 7 prime or composite?
prime
What is a factor?
a number that you multiply with another number to get a product
14 is composite. What factors of 14 are prime?
2 and 7
24 is composite. What are the factors of 24?
1, 2, 3, 4, 6, 8, 12, 24
What two numbers are composite?
5,12,19,14
12, 14
Is 14 prime or composite?
Composite
What is a prime number?
a whole number greater than 1 that has exactly two factors, 1 and itself
24 is a composite. What factors of 24 are prime?
2 and 3
30 is composite. What are the factors of 30?
1, 2, 3, 5, 6, 10, 15 and 30
What 2 numbers are prime?
17,14,19,39
17, 19
Is 19 prime or composite?
prime
What is a composite number?
a whole number greater than 1 that has two or more than two factors
51 is composite. What factors of 51 are prime?
3 and 17
48 is composite. What are the factors of 48?
2, 3, 4, 6, 8, 12, 16, 24, 48
What two numbers are composite?
39,51,23,29
39, 51
Is 28 prime or composite?
composite
61 67 74 ARE ALL COMPOSITE NUMBERS
FALSE
Jayden was told to list all prime numbers between 30 and 50. Jayden's list is shown.
31, 37, 41, 47
The prime number missing from Jayden's list is ___.
What is 43?
50 is composite. What are the factors of 50? are composite?
1, 5, 10, 25, 50
What two numbers are prime?
31,15,39,37
31, 37
Brenda said the number 2 is prime because it has only two factors. Carla said that the number 2 is composite because it is an even number, and all even numbers are composite.
_________ is correct. Why?
Brenda
THE NUMBER 51 is prime. why or why not?
FALSE, 17 x 3