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Byju's Answer
Standard XII
Mathematics
Complement of an Event
Given two dif...
Question
Given two different prime numbers
P
and
Q.
Find the number of divisors of
P
2
Q
A
2
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B
4
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C
6
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D
8
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Solution
The correct option is
C
6
For
P
m
&
Q
n
, the number of divisors is
(
m
+
1
)
(
n
+
1
)
.
Consider,
P
2
Q
here,
m
=
2
,
n
=
1
Thus the number of divisors is
(
2
+
1
)
(
1
+
1
)
=
3
×
2
=
6
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