Math Problem: Use 3 numbers to sum to 50: 1,5,9,11,21,25. You could try every possible unordered pair and check whether that and one of the remaining numbers sums to 50. That methodology requires you to

Day 3 Problem A Math mini-contest for D.Buzz for July 2021 A random integer between -200 and +200 is multiplied by a rational number between -2 and +2. The ranges are inclusive. What is the range of the

Day 2 Problem B Math mini-contest for D.Buzz for July 2021 The decimal number 16,954.248 converts to 1,244.650 in another number system. What is the base of the other number system? The problem has originally

Win 1 HIVE for correctly answering first!

Win 1 HIVE for correctly answering first! 😁 (see rules)

In my last video I showed how to multiply numbers containing only 1's together very quickly using an amazingly easy method. In this video I go over a proof, or more like a brief explanation, showing why

In #MESScience 2 I cover a relatively unknown concept called “Vortex Math” or “Vortex Based Mathematics” which was founded by Marko Rodin. Vortex math is based upon the continual summing of digits of a

How to generate all Pythagorean triples? Read this article to find out!

Over on Quora, I answered the question "What is a program in Java to check whether a number is a sum-product number?" The correct answer, in my opinion, is the following: public static boolean

A daily puzzle from @mathematrix has as its solution a "digit sum sequence": each new term is created by adding the sum of digits of the previous number. So, for example, starting from 1 we get

trash

Over 2000 years ago Euclid was possibly the first to give a proof that there are an infinite number of primes. A proof of this is actually very simple and fairly easy to understand. It is even often touted