Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards


share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

PRIME or COMPOSITE

QuestionAnswer
2 PRIME 2 is the only even prime number
3 PRIME
4 COMPOSITE 2
5 PRIME
6 COMPOSITE 2 & 3
7 PRIME
8 COMPOSITE 2
9 COMPOSITE 3
10 COMPOSITE 2 & 5
11 PRIME
12 COMPOSITE 2
13 PRIME
14 COMPOSITE 2
15 COMPOSITE 3 & 5
16 COMPOSITE 2
17 PRIME
18 COMPOSITE 2 & 3
19 PRIME
20 COMPOSITE 2 &5
21 COMPOSITE 3
22 COMPOSITE 2
23 PRIME
24 COMPOSITE 2 & 3
25 COMPOSITE 5
26 COMPOSITE 2
27 COMPOSITE 3
28 COMPOSITE 2
29 PRIME
30 COMPOSITE 2 & 5
31 PRIME
32 COMPOSITE 4
33 COMPOSITE 3
34 COMPOSITE 2
35 COMPOSITE 5
36 COMPOSITE 2 & 3
37 PRIME
38 COMPOSITE 2
39 COMPOSITE 3
40 COMPOSITE 2 & 5
41 PRIME
42 COMPOSITE 2 & 3
43 PRIME
44 COMPOSITE 2
45 COMPOSITE 3 & 5
46 COMPOSITE 2
47 PRIME
49 COMPOSITE 7
50 COMPOSITE 2 & 5
51 COMPOSITE 3
52 COMPOSITE 2
53 PRIME
54 COMPOSITE 2 & 3
55 COMPOSITE 5
56 COMPOSITE 2
57 COMPOSITE 3
58 COMPOSITE 2
59 PRIME
60 COMPOSITE 2 , 3, & 5
61 PRIME
62 COMPOSITE 2
63 COMPOSITE 3
64 COMPOSITE 2
65 COMPOSiTE 5
66 COMPOSITE 2
67 PRIME
68 COMPOSITE 2
69 COMPOSITE 3
70 COMPOSITE 2 & 5
71 PRIME
72 COMPOSITE 2 & 3
73 PRIME
74 COMPOSITE 2
75 COMPOSITE 3 & 5
76 COMPOSITE 2
77 COMPOSITE 7 & 11
78 COMPOSITE 2 & 3
80 COMPOSITE 2 & 5
81 COMPOSITE 3
82 COMPOSITE 2
83 PRIME
84 COMPOSITE 2 & 3
85 COMPOSITE 5
86 COMPOSITE 2
87 COMPOSITE 3
88 COMPOSITE 2 & 11
89 PRIME
90 COMPOSITE 2 , 3 , & 5
** 91 ** COMPOSITE
92 COMPOSITE 2
93 COMPOSITE 3
94 COMPOSITE 2
95 COMPOSITE 5
96 COMOSITE 2 & 3
97 PRIME
98 COMPOSITE 2
99 COMPOSITE 3
100 COMPOSITE 2 & 5
Created by: PRO Teacher lit123