Which of the following CANNOT be a factor of 2^i and
3^j , where i and j are positive integers?
(A) 6
(B) 8
(C) 27
(D) 42
(E) 54
Subscribe to:
Post Comments (Atom)
is intended to be a spot where any student preparing for GRE can discuss study topics,find or provide tips & works towards a top score along with other students working for the same goal.Answer"GRE WORD OF THE DAY", "GRE SENTENCE COMPLETION OF THE DAY", "GRE ANALOGY OF THE DAY", "GRE ANTONYM OF THE DAY", "GRE MATH PROBLEM OF THE DAY", "GRE ALGEBRA QUESTION OF THE DAY", "GRE GEOMETRY QUESTION OF THE DAY"& "GRE PASSAGE OF THE WEEK". To get a top score,the first step of the ladder starts from here.
GRE QUESTION ON DEMAND
Send your doubts and questions to gretimes@in.com
we will post your doubt / questions along with your name on GRE Study Forum.
we will post your doubt / questions along with your name on GRE Study Forum.
GRE Information / Downloads
Blog Archive
-
►
2009
(24)
- ► April 12 - April 19 (7)
- ► April 5 - April 12 (12)
- ► March 29 - April 5 (5)
-
▼
2007
(581)
- ► July 29 - August 5 (9)
- ► July 15 - July 22 (8)
- ► July 1 - July 8 (9)
-
▼
June 17 - June 24
(18)
- GRE QUESTION ON DEMAND
- GRE ALGEBRA QUESTION OF THE DAY
- GRE GEOMETRY QUESTION OF THE DAY
- GRE QUESTION ON DEMAND
- GRE MATH PROBLEM OF THE DAY
- GRE ANTONYM OF THE DAY
- GRE ANALOGY OF THE DAY
- GRE SENTENCE COMPLETION OF THE DAY
- GRE QUESTION ON DEMAND
- GRE QUESTION ON DEMAND
- GRE QUESTION ON DEMAND
- GRE WORD OF THE DAY
- GRE ALGEBRA QUESTION OF THE DAY
- GRE ANTONYM OF THE DAY
- GRE ANALOGY OF THE DAY
- GRE SENTENCE COMPLETION OF THE DAY
- GRE GEOMETRY QUESTION OF THE DAY
- GRE MATH PROBLEM OF THE DAY
- ► June 10 - June 17 (26)
- ► June 3 - June 10 (16)
- ► May 27 - June 3 (19)
- ► May 20 - May 27 (8)
- ► May 13 - May 20 (25)
- ► May 6 - May 13 (6)
- ► April 29 - May 6 (24)
- ► April 22 - April 29 (12)
- ► April 15 - April 22 (26)
- ► April 8 - April 15 (13)
- ► April 1 - April 8 (7)
- ► March 25 - April 1 (31)
- ► March 18 - March 25 (14)
- ► March 11 - March 18 (30)
- ► March 4 - March 11 (9)
- ► February 25 - March 4 (32)
- ► January 28 - February 4 (43)
- ► January 21 - January 28 (44)
- ► January 14 - January 21 (45)
ORKUT members JOIN HERE
Posts
For More Information Contact-
gretimes@in.com
GRE is a registered trademark of the Education Testing Service (ETS).
This site and its products have neither been reviewed nor endorsed by ETS.
16 comments:
it can be either 8 or 27 coz,it was given as both multiple pf 2 "AND" 3
it can be 42 because , 42 is not only (purly) multiple of 2^i and 3^j ie
42=2*3*7 ... 7 is not a multiple of 2^i and 3^j.
27
i think its 8.
8 is not a factor of 3
my answer is 8
bcos 8 is a factor of 2 but not 3
if its 8 bcoz its not factor of 3 then 27 not factor of 2 ? how can u give that xplanation?
I think its 42 ,as all others the factors are 2 and 3 and only 42 has a 7 in it .
its 42 . cos the possible factors are powers of 2 or powers of 3 or multiples of 6 and 42 doesn km under any of the above.
The Answer will b 42
Bcause only in that along with 2 and 3 there is a no. 7 which is not allowed according 2 the statement
42=2*3*7
42 ,because ,
42= 2*3*7
7 is not in choice
actually the question is wrong...
i and j are positive integers...
hence for 8 and 27
8=2^3*3^0
27 = 3^3 * 2^0
HENCE THE QUESTION IS WRONG
d . since 2*3*7=42 not possible
yah even i think the both 8 and 27 are the ans, cos 3 is not a factor of 8 and 2 is not a factor to 27.
The Q says to find out the no. that isnt a multiple of both 2&3. In other words we have to find the no. that is not a multiple of 6.
Hence the ans are both 8 and 27 according to me.
i think it is 42 bcoz,
2^3 = 8, 3^3 = 27, 2^1*3^1 = 6,
2^1*3^3 = 54 but, 2^1*3^1*7^1 = 42
Post a Comment