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# Number System

19

Sep'22

### Concept of Remainders

The topic of remainders is an important one for the CAT exam. The questions from this topic often appear in …

11

Sep'22

### Factorials

The concept of factorials is very important for the number system when the student is preparing for the CAT examination. …

16

Aug'22

### Highest Common Factor (HCF) of numbers

The topic of HCF and LCM is an important one if you are preparing for the CAT examination. In this …

30

Jul'22

### Factors of a Number

The concept of factors of a number and its application in the questions is very important concept while preparing number system for the CAT examination. Factors of a number N are the numbers which divide N. So, if we talk about a number say, 12, then

27

Jul'22

### Last Two Digits of a Number

In this article we will discuss about the concept of last two digits of a number. We know that to get the unit digit of a number, we do not need the whole number but only the last digit of the number. Similarly, to get the last two digits we do not the whole number but the last two digits of the number are required.