1.
Which of the following values is prime?
A.
72
B.
81
C.
53
D.
96
Hint
2.
Find the GCF of 14
a
2
b
4
c
and 56
ab
2
c
2
A.
14
a
2
b
4
c
2
B.
56
a
2
b
2
c
2
C.
14
ab
2
c
D.
56
ab
2
c
Hint
3.
Is 57 prime or composite? If it is composite, what is its factorization?
A.
composite, 3 × 17
B.
composite, 3 × 19
C.
composite, 2 × 29
D.
prime
Hint
4.
Find the prime factorization of -198.
A.
2 · 3
2
· 11
B.
–1 · 2 · 3
2
· 11
C.
–1 · 2 · 3
2
· 10
D.
2 · 3
2
· 10
Hint
5.
Is 79 prime or composite? If it is composite, what is its factorization?
A.
prime
B.
composite, 3 × 23
C.
composite, 7 × 11
D.
composite, 13 × 6
Hint