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Aptitude ➤ Number Systems
Question 1
Q1.  The smallest prime number is ?
Question 2
Q2.  What is the unit digit in the product (114 X 859 X 213 X 476) ?
Question 3
Q3.  What is the unit digit in the product (3547)153 X (251)72 ?
Question 4
Q4.  Find the unit's digit in (264)102 + (264)103 ?
Question 5
Q5.  What least number must be added to 3000 to obtain a number exactly divisible by 19 ?

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