The last digit of (2171)^{7} + (2172)^{9} + (2173)^{11} + (2174)^{13} is

- a)2
- b)4
- c)6
- d)8

Correct answer is option 'B'. Can you explain this answer?

S T
answered
3 weeks ago

1+2+7+4=14

1^7=7

2^9=512

3^11 or3^3 have last digit 7

4^(even no) give 6 as last digit and

4^(odd)=4 as last digit

1^7=7

2^9=512

3^11 or3^3 have last digit 7

4^(even no) give 6 as last digit and

4^(odd)=4 as last digit

This discussion on The last digit of (2171)7 + (2172)9 + (2173)11 + (2174)13 is a)2 b)4c)6d)8Correct answer is option 'B'. Can you explain this answer? is done on EduRev Study Group by GATE Students. The Questions and
Answers of The last digit of (2171)7 + (2172)9 + (2173)11 + (2174)13 is a)2 b)4c)6d)8Correct answer is option 'B'. Can you explain this answer? are solved by group of students and teacher of GATE, which is also the largest student
community of GATE. If the answer is not available please wait for a while and a community member will probably answer this
soon. You can study other questions, MCQs, videos and tests for GATE on EduRev and even discuss your questions like
The last digit of (2171)7 + (2172)9 + (2173)11 + (2174)13 is a)2 b)4c)6d)8Correct answer is option 'B'. Can you explain this answer? over here on EduRev! Apart from being the largest GATE community, EduRev has the largest solved
Question bank for GATE.

Ask a question

Upgrade to Infinity