"It was a wonderful experience interacting with you and appreciate the way you have planned and executed the whole publication process within the agreed timelines.”
Subrat SaurabhAuthor of Kuch Woh Pal
This book will introduce the world to a new topic of mathematics and open a new window for Prime Numbers. The method to write large numbers with repeated digits in a short space was first introduced in the book "An Untold Algorithm". This book is about "Summed Split Square Numbers" or SSS numbers in short. Though some of these numbers are very large they contain digits or groups of digits repeated several times. Large space is required to write these numbers. But this method enables us to write such numbers in a short space.
This book has discussed the other aspect of this method. The most interesting aspect of this method is to distinguish between prime and composite numbers. If a number contains 1, 3, 7, or 9 at its unit place, then it is difficult to identify whether the number is a prime number or a composite number. Let us take a simple example. Suppose, we have two numbers 21 and 31, and both the numbers have 1 at their unit place. But 21 is a composite number and 31 is a prime number. Similarly, let us take the numbers 23 and 33. Both the numbers have 3 at their unit place. But here 23 is a prime number and 33 is a composite number. So it is difficult to identify a prime number. But we can easily identify them from the divisibility pattern of a number formed by repeating the digit 1 and dividing it by that number which is to be checked. This is discussed in detail in this book. This may open a new horizon to study the mysterious character of prime numbers.
P.C. BAKSHI
P.C. Bakshi is an Engineer who completed post-graduation in engineering and started his service career with Coal India. Though Engineering is his favorite subject, Mathematics is his first preference right from childhood. He cracked so many hard mathematical and logical puzzles during school, college, and service life. He was a regular member of the "Brain Storming" column of a reputed newspaper.
Playing with the numbers is his favorite time pass after retirement. During this course, he came across a few interesting series of numbers. He started working on these numbers and achieved great success on an interesting series of numbers. He could find out very interesting formulae to establish a relationship among the numbers of this series. His first book "An Untold Algorithm" was published in this series which is a new chapter in mathematics.
The new method, introduced in the first book to describe large numbers with repeated digits in a short space, opened another new chapter of mathematics. As a result, this second book has come out to describe all these interesting aspects in detail.
