Prime numbers
9 is a composite number.
Which factor of 9 is prime?
3
12 is composite. What factors of 12 are also composite?
4, 6, and 12
Which two numbers are prime
5 10
15 7
5, 7
Is 777 prime or composite?
composite
What is a factor?
any number that can be divided evenly into a larger number
4 is a composite number.
Which factor of 4 is prime?
2
24 is composite. What factors of 24 are composite?
4, 6, 8, 12, and 24
What two numbers are composite?
5 12
19 14
12, 14
Is 141 prime or composite?
Composite
What is a prime number?
a whole number greater than 1 that has exactly two factors, 1 and itself
25 is a composite number.
Which factor of 25 is prime?
5
30 is composite. What factors of 30 are also composite?
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 more than two factors
50 is a composite number.
Which factor of 50 is prime?
5
48 is composite. What factors of 48 are also composite?
4, 6, 8, 12, 16, 24, 48
What two numbers are composite?
39 51
23 29
39, 51
Is 283 prime or composite?
prime
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 factors of 50 are composite?
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.
Brenda, because the only even prime number in existence is 2.
THE NUMBER 1 IS NOT PRIME
TRUE