Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 108)
108.
What is the unit digit in (4137)754?
1
3
7
9
Answer: Option
Explanation:

Unit digit in (4137)754 = Unit digit in {[(4137)4]188 x (4137)2}

=Unit digit in { 292915317923361 x 17114769 }

= (1 x 9) = 9

Discussion:
18 comments Page 2 of 2.

Aditya said:   1 decade ago
Why it can't be solve like this (4137)^754?

As 7^4 as equal to 1.

Mohan s said:   9 years ago
@Manish Methani. How 4 To the power 4 is 2401? Just explain.

Khushi said:   1 decade ago
Please explain how to find unit digit in any problem?

Arvind said:   6 years ago
What will be the unit number of (3^57*6^41*7^63)?
(1)

Rammurti rawat said:   1 decade ago
No need to this question please explain again?

MD AFTAB ALAM said:   6 years ago
@Manish.

4 ka 4th power =256 not 2401.

Anki said:   1 decade ago
2^4344 what will be unit digit here?

Aditya Dheer said:   5 years ago
The correct answer is 1.
(1)


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