1
WB JEE 2009
MCQ (Single Correct Answer)
+1
-0.25

Product of any r consecutive natural numbers is always divisible by

A
r!
B
(r + 4)!
C
(r + 1)!
D
(r + 2)!
2
WB JEE 2009
MCQ (Single Correct Answer)
+1
-0.25

For each n $$\in$$ N, 23n $$-$$ 1 is divisible by

here N is a set of natural numbers.

A
7
B
8
C
6
D
16
3
WB JEE 2011
MCQ (Single Correct Answer)
+1
-0.25

The number (101)100 $$-$$ 1 is divisible by

A
104
B
106
C
108
D
1012
4
WB JEE 2023
MCQ (Single Correct Answer)
+1
-0.25
Change Language

Let $$P(n) = {3^{2n + 1}} + {2^{n + 2}}$$ where $$n \in N$$. Then

A
P(n) is not divisible by any prime integer.
B
there exists prime integer which divides P(n).
C
P(n) is divisible by 5 for all $$n \in N$$.
D
P(n) is divisible by 3 for all $$n \in N$$.
WB JEE Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12