Prime Numbers
Which one of these numbers is a prime number?
7 or 39
7?
Composite numbers have more than ______ factors.
two
What are the factors for 16?
1, 2, 4, 8, 16
What are the prime factors of 12?
3 x 2 x 2
Sally has $33 and Mark has $46. ABOUT how much money will they have if they combine their money?
$80
This prime number is a factor of 4
2
When you add this composite number to the prime number 7 you get a prime number, 13
6
What are the factors for 35
1,,5,7,35
What are the prime factors of 28?
7 x 2 x 2
Jacob has 26 seashells. She gives away 13 shells. ABOUT how many shells does she have left?
20
13 or 21
13
Which one is a composite number?
41 or 39
39
Which numbers are factors of 28?
1, 2, 3, 4, 6, 7, 12, 14
1, 2, 4, 7, 14
What is the prime factorization of 36?
3 x 3 x 2 x 2
Victor has $112 to spend on clothing. A shirt costs $43 and 1 pair of pants cost for $66. About how much money will he spend if he buys both?
$110
When cubed, this prime number equals 27. (x3)
3
When you square 5, you get this composite number.
25
Find all the factors for 42
1, 2, 3 6, 7, 14, 21, 42
What is the prime factorization of 56?
7 x 2 x 2 x 2
810
31 or 81
31
When you cube 4, you get this composite number.
64
What are the factors for 64
1, 2, 4, 8, 16, 32, 64
What is the prime factorization of 72?
2 x 3 x 2 x 2 x 3
Zeke has 1098 pokemon cards. He gives 148 to his sister, Mysti, and 318 to his best friend, Jake. About how many cards does he have left?
700 (or 630)