# QA – Placement Quizzes | Numbers, LCM and HCF | Question 3

What is the unit’s digit in the product (267)153 x (66666)72 ?
(A) 7
(B) 6
(C) 1
(D) 2

Explanation: We have to find the unit digit only.

```In 267 unit digit is 7 and cyclicity of 7 is 4.
So, (267)153 can be written as (267)Rem(153)/4 = (267)1
Unit digit of (267)1 = 7.
similarly for 66666 unit digit is 6 and cyclicity for 6 is 1.
Unit digit for (66666)72 = 6.
Therefore , Unit digit of the resultant is 7 * 6 = 2Quiz of this Question
Whether you're preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, GeeksforGeeks Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we've already empowered, and we're here to do the same for you. Don't miss out - check it out now!

Last Updated :
16 May, 2019

Like Article

Save Article

Previous

QA - Placement Quizzes | Mixtures and Alligation | Question 8

Next

QA - Placement Quizzes | Numbers, LCM and HCF | Question 4

```