January 11, 2013
WHAT DO YOU WANT TO
WORK ON?
Prime and Composite
Factors
Prime Factorization
GCF
January 11, 2013
What are prime and composite numbers?
Only has one set of
PRIME
factors
- 1 and itself
Fill any
shapes that
are prime
using the fill
tool. If you
are right you
will still be
able to see
the number.
There are 25
prime numbers.
HINT
1
31
22
32
41
33
51
71
52
72
81
91
92
93
26
85
94
86
95
50
70
80
79
89
98
60
59
69
88
97
40
58
78
20
30
49
68
87
96
39
57
77
19
29
48
67
66
76
28
47
10
18
38
56
55
75
17
37
9
8
27
46
65
84
16
36
54
74
83
25
45
64
7
15
35
53
73
82
24
44
63
6
14
34
43
62
5
13
23
42
61
4
12
11
HOME
one set of factors
3
2
21
Has more than
COMPOSITE
90
99
100
January 11, 2013
FACTORS:
A factorWHAT
is a number
that evenly goes
IS A FACTOR?
into another number.
Click on a number to go to its
factor page. You will earn a clue
each time to solve a riddle.
1
2
(Click the FACTORS box to check your
answer and recieve your clue)
3
4
5
6
7
8
HOME
9
10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41
42 43 44 45 46 47 48 49 50
January 11, 2013
FACTOR PAGE
'
12
38
11
21
3
20
6
14
39
10
33
36
1
17
34
7
41
19
25
2
26
37
18
28
5
44
42
23
16
35
24
46
22
29
43
49
15
9
30
48
45
?
'
27
8
47
50
32
40
13
4
31
.
January 11, 2013
1
Factors
1
d
RIDDLE
January 11, 2013
2
Factors
1,2
w
RIDDLE
January 11, 2013
3
Factors
1, 3
h
RIDDLE
January 11, 2013
4
Factors
1,2, 4
s
RIDDLE
January 11, 2013
5
Factors
1, 5
d
RIDDLE
January 11, 2013
6
1,2,3,6
Factors
h
RIDDLE
January 11, 2013
7
1,7
Factors
d
RIDDLE
January 11, 2013
8
Factors
1,2,4,8
a
RIDDLE
January 11, 2013
9
1,3,9
Factors
h
RIDDLE
January 11, 2013
10
1,2,5,10
Factors
o
RIDDLE
January 11, 2013
11
1,11
Factors
S
RIDDLE
January 11, 2013
12
1,2,3,4,6,12
Factors
W
RIDDLE
January 11, 2013
13
1,13
Factors
1
RIDDLE
January 11, 2013
14
1,2,7,14
Factors
h
RIDDLE
January 11, 2013
15
1,3,5,15
Factors
n
RIDDLE
January 11, 2013
16
1,2,4,8,16
Factors
r
RIDDLE
January 11, 2013
17
1,17
Factors
e
RIDDLE
January 11, 2013
18
1,2,3,6,9,18
Factors
1
RIDDLE
January 11, 2013
19
1,19
Factors
o
RIDDLE
January 11, 2013
20
1,2,4,5,10,20
Factors
l
RIDDLE
January 11, 2013
21
1,3,7,21
Factors
w
RIDDLE
January 11, 2013
22
1,2,11,22
Factors
t
RIDDLE
January 11, 2013
23
1,23
Factors
c
RIDDLE
January 11, 2013
24
1,2,3,4,6,8,12,24
Factors
i
RIDDLE
January 11, 2013
25
1,5,25
Factors
u
RIDDLE
January 11, 2013
26
1,2,13,26
Factors
e
RIDDLE
January 11, 2013
27
1,3,9,27
Factors
t
RIDDLE
January 11, 2013
28
1,2,4,7,14,28
Factors
d
RIDDLE
January 11, 2013
29
1,29
Factors
t
RIDDLE
January 11, 2013
30
1,2,3,5,6,10,15,30
Factors
1
RIDDLE
January 11, 2013
31
1,31
Factors
t
RIDDLE
January 11, 2013
32
1,2,4,8,16,32
Factors
o
RIDDLE
January 11, 2013
33
1,3,11,33
Factors
c
RIDDLE
January 11, 2013
34
1,2,17,34
Factors
a
RIDDLE
January 11, 2013
35
1,5,7,35
Factors
n
RIDDLE
January 11, 2013
36
1,2,3,4,6,9,12,18,36
Factors
n
RIDDLE
January 11, 2013
37
1,37
Factors
i
RIDDLE
January 11, 2013
38
1,2,19,38
Factors
b
RIDDLE
January 11, 2013
39
1,3,13,29
Factors
y
RIDDLE
January 11, 2013
40
1,2,4,5,8,10,20,40
Factors
w
RIDDLE
January 11, 2013
41
1,41
Factors
t
RIDDLE
January 11, 2013
42
1,2,3,6,7,14,21,42
Factors
n
RIDDLE
January 11, 2013
43
1,43
Factors
e
RIDDLE
January 11, 2013
44
1,2,4,11,22,44
Factors
l
RIDDLE
January 11, 2013
45
1,3,5,9,15,45
Factors
1
RIDDLE
January 11, 2013
46
1,2,23,46
Factors
t
RIDDLE
January 11, 2013
47
1,47
Factors
m
RIDDLE
January 11, 2013
48
1,2,3,4,6,8,
12,16,24,48
Factors
e
RIDDLE
January 11, 2013
49
1,7,49
Factors
k
RIDDLE
January 11, 2013
50
1,2,5,10,25,50
Factors
e
RIDDLE
January 11, 2013
PRIME FACTORIZATION
HOME
Factor
P
U
L
L
16 down to its prime factorization.
Why would you not want to
start with 1 and 16 even
though those are factors?
16
January 11, 2013
Can you find another way
to find the prime
factorization of 16?
16
Your answer should still be the same
HOME
January 11, 2013
Factor the number on each box, click the top number to check, and
then click the bottom box to reveal a piece of a picture.
.
2243
HOME
.
2.
212 3
236. 3
24
45
36
14
30
12
32
18
3
3 .5
2 .30
3455
2
2
32
2
5
2
214. 7
2
.
18
2 3
January 11, 2013
GCF
HOME
WHAT DOES
GCF STAND
FOR?
Greatest
Common
Factor
List all factors for these three numbers:
Circle the greatest number that they ALL have.
24
P
U
L
L
18
What is the greatest POSSIBLE
GCF based on these numbers?
36
6
Check the
GCF
January 11, 2013
Drag the GCF to the correct numbers.
25 & 15:
56 & 48:
16, 32, & 28:
14 & 7:
12, 20, & 30:
27, 36, & 45:
63 & 72:
40, 24, & 8:
33 & 19:
5
13
1
9
17
6
14
2
10
18
7
15
3
11
19
8
16
HOME
4
12
20
HINT: The sum of the
GCFs' should be 62