numbertheory Tag Posts Index

Multiplying a Number and Its Vortex Sum Results in the Same Vortex Sum

In this video I show that multiplying a number or its vortex sum (summing digits until a single digit is obtained) yields the exact same vortex sum. This is the

Using Base 10 to Calculate Vortex Sum of Different Number Systems

In this video I show that the vortex digit sum (summing the digits until we obtain 1 digit) for any base number system can be obtained quickly by using the default

Vortex Math: Summing Digits of a Number is the Remainder AND Repeating Digit of Division

In this video I show that not only is the vortex sum (summing of digits a number until 1 digit remains) is the remainder when dividing by the largest single digit,

Converting Between Different Number Systems

In this video I show how to convert between different base number systems by first writing the number in its equivalent base exponential addition form, and then

The Number 0 and 10 in General Number Systems

In this video I go over a quick overview of number systems, and show how the base or radix (Latin for "root") serves as the transition point when counting

Elemental Subset Sum Problem

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

Result of the Day 3 [Problem A] Challenge of my July 2021 Math mini-contest for D.Buzz

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

Result of the Day 2 [Problem B] Challenge of my July 2021 Math mini-contest for D.Buzz

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

Math mini-contest problem on D.Buzz for July 2021 [Day 2 - Problem B] 😎

Math mini-contest problem on D.Buzz for July 2021 [Day 2, Problem B] 😎 The decimal number 16,954.248 converts to 1,244.650 in another number system. What is the

Math mini-contest problem for Day 4 on D.Buzz for March 2021 😎

Math mini-contest problem for Day 4 on D.Buzz 😎 Ahmad played with numbers again. Starting with a positive number N, he added 3, then used the sum to divide N. The

Amazing Math Calculation Method: Multiplying 1's Proof

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

🔥#MESScience 2: Vortex Math Part 1: Number Theory and Modular Arithmetic

Watch on 3Speak - Odysee - BitChute - Rumble - YouTube - Notes - PDF notes - Excel file - Summary - Vortex Math playlist - MES Science playlist In #MESScience 2

The Mathematical Properties Of The Enneagram; Part Two

The Mathematical Properties Of The Enneagram

Pythagorean Triples

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

Smartass answers to number theory programming problems

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,

The Winds of War

Digit Sum Sequences

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.

NM

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Proof there are an infinite number of prime numbers

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