Cyclic Number
There is a very interesting concept called Cyclic Number.
Cyclic Numbers can be defined as a number with n digits, which, when multiplied by 1, 2, 3, ..., n produces the same digits in a different order.
There are few very famous cyclic numbers. We have given a puzzle question below, if you could answer the puzzle your concept of cyclic number will be crystal clear. That's the reason we have not given example for cyclic numbers.
Can you find a number which added to itself one or several times will give a total having the same digits as that number but differently and after the sixth addition will give a total of all nines?
Leave your answers below. We will provide the answer if you ask for 
Popularity: 11%
A Problem of Family Relations
Mathematical Puzzle
Apply your calculative skills to find out the answer to this maths puzzle.
Every man or woman alive today had 2 parents, 4 grand-parents, 8 great-grand parents, 16 great-great-grand parents, 32 great, great, great grand parents and so on.
Let us take the case of Ram. Two generations ago Ran had 2 x 2 or 22, or 4 ancestors. Three generations ago he had 2 x 2 x 2 or 23 or 8 ancestors. For generations ago he had 2 x 2 x 2 x 2 or 24 or 16 ancestors.
Assuming that there are 20 years t o a generation, can you tell 400 years back how many ancestors did Ram have?
Popularity: 1%
Oldest Riddle in History
The Man at St. Ives
This is one of the oldest riddles in history. According to few this riddle has been included in the Guiness Book of Records. Though we are not sure about that. But anyways try giving the answer to this ancient riddle!!
How many were going to St. Ives?
“As I was going to St. Ives
I met a man with seven wives.
Each wife had seven sacks,
Each sack had seven cats,
Each cat had seven kits;
Kits, cats, sacks and wives,
How many were going to St. Ives?”
Friends, leave your answer below -
Popularity: 3%
Interesting Riddle-Puzzle
The Lily Pond Riddle
In India water lilies grow extremely rapidly. In one pond a lily grew so fast that each day it covered a surface double that which it covered the day before. At the end of the 30th day it entirely covered the pond, in which it grew. But how long would it take to water lilies of the same size at the outset
Popularity: 2%
Ancient Indian Mathematicians and Their Teachings
Ancient Indian Mathematicians and Their Teachings
We are starting a very special series “Teaching of Indian Mathematicians”.
In this special series we will discuss various concepts propounded by Indian mathematicians which are very useful even today.
Formula for cyclic quadrilateral propounded by 9th Century Indian Mathematician Mahavira
First in this series, I am explaining a very nice concept propounded by Mahavira, a 9th-century Indian mathematician from Gulbarga (South India) who asserted that the square root of a negative number
Popularity: 19%
Why is 1 not a Prime Number?
Is 1 a Prime Number?
Friends, in one of the post where I have described ‘Prime’ and ‘Composite’ Numbers, one of the curious visitor have asked me a very logical question. I will quote that question for your reference –
Text from Previous post-
“Prime and Composite : Any integer which is divisible by 1 and itself only is called a prime number.
unquote
quote
N.B.: 1 is not a prime number.”
Question
Could you explaine what is the creteria thar excludes 1 from the list of prime numbers?
a) 1 is integer
b) 1 is divisible by 1 and itself (1)
Since anybody in the past has declared that 1 is not prime number, why we should follow this without thinking and contravene the general rule for prime numbers?
Is 1 as a figure is something which has come from the thin air. It is and always will be an integer. The criteria for 2 are the same – divisible by 1 and itself. And for all prime numbers.
Most probably the 1 is “guilty” because with 1 starts the series on numbers (natural, odd or prime). Suppose 2 was the beginning of the series. Should we ignore 2, because series starts with 2?
Popularity: 10%
Comparison of Fractions
Comparison of fractions: Suppose, some fractions are to be arranged in ascending or descending order of magnitude.
Popularity: 11%
Decimal Fraction Rules
Multiplication of a decimal Fraction by a Power of 10: Rule: Shift the decimal point to the right by as many places of decimal as is the power of 10.
Multiplication of Decimal fractions:- Rule :- Multiply the given numbers considering them without the decimal point. Now, in the product, the decimal point is marked off to obtain as many places of decimal as is the sum of the number of decimal in the given numbers.
Dividing a Decimal fraction By a Counting Number
Rule: - Divide the given number without considering the decimal point by the given counting number. Now, in the quotient, put the decimal point to give as many places of decimal as are there in the dividend.
Popularity: 13%
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