Today is Perfect Number Day! A Perfect Number is a number whose factors add up to the same number. For example, 6 is a Perfect Number because the factors of 6 (= 1+2+3) add up to 6. The next Perfect number is 28 (= 1+2+4+7+14). Yes, you guessed it right! That's why 6/28 i.e. 28th... Continue Reading →
In 1991, Harvey Dubner discovered a prime with a total of 6,400 digits: all 9s except one 8. Here's the precise value This is how the number looks. 8 is at 48th place
Today is a special day of our life…🎊 Today is the 21st day and 21st week of 21st year of the 21st century!
This year February is an exact rectangle because it starts on a Monday and it’s not a leap year. But it’s not as rare as I see people claiming (every 200 years apparently‽), it’s about every 10 years. The previous was 2010 and the next is 2027. Courtesy: Matt Parker, Mathematician
Maths is fun! Today is the 21st day of the 21st year of the 21st century! To celebrate here is a 21 by 21 magic square which has a magic total of 21.
Amazing circle of numbers 1 to 32 without repetition such that the sum of any two adjacent numbers on this circle is a perfect square.
2021 is the smallest number that can be expressed as the product of two consecutive primes that produces a palindrome when multiplied by its reverse and that is a position in π, e and φ with the same digit. 2021 is the smallest number made from the concatenation of rising consecutive integers that can be... Continue Reading →
Today is #PythagoreanTheoremDay. Also known as “Right Triangle Day,” it’s a day when the sums of the squares of the month and day equal the square of the last two digits of the year. Clever and elusive, we’re celebrating it now because the next time this happens is in 2025! 📐
Here's a quick method to calculate the square root of a number (√y) by hand
Q: By the end of the 9th day of the 9th month (i.e. 9th September), the 252nd day of the year, how many minutes had passed this year? A: 9! = 252 days= 9×28 days= 9×28×24 hours= 9x28×24×60 minutes= 9×(7×4)×(8×3)×(6×5×2) minutes= 9×8×7×6×5×4×3×2 minutes= 9! minutes
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