Krishnamurthi number
umasundresh
A Krishnamurthi number is a number whose sum of the factorial of the digits is equal to the number itself.
Number theory
Palindrome day!
A palindrome number is a number that remains the same when its digits are reversed .
Today’s date is one such example.
12-3-21, even if it is reversed, the answer will be the same .
Share this:
Doubly even order Magic Square
We know to construct the magic square of odd order, constructing the even order magic square is little tricky, we solve this by dividing the even numbers into doubly even and singly even. Let us first see about the doubly-even here, because singly-even comprises odd and doubly-even magic square constructing methods.
The following video will brief you about building the doubly-even magic squares.
Share this:
MAGIC SQUARE
Magic square – It is a square matrix, i.e., it has equal number of rows and columns. The sum of the numbers in any rows, columns and diagonals is always the same.
Creating magic squares are very easy if we follow certain rules, They are clearly explained with an example in the following video.
Share this:
‘2021’ is the year of partner in prime.
Happy New year!!!
Share this:
DICE FACT
Share this:
TWIN PRIME CONJECTURE
There are infinitely many prime numbers ‘p’ such that ‘p+2’ is also prime. Such a kind of pairs of prime numbers are called as twin primes.
Share this:
The Golden ratio Φ (phi)
Here the straight line AB is divided into AC and CB of measure ‘a’ and ‘b’ respectively.
we say that ‘a’ and ‘b’ are in the golden ratio, if
the ratio of the whole sum to the larger measure equals to the ratio of the larger measure to the smaller measure.
Φ=(a+b)/a =a/b
The value of Φ is$ (1+√5)/2 =1.618…$