Newbetuts

Beginner: How to complete the induction case in a proof that all multiples are a product of the least common multiple

$2+2 = 5$? error in proof

Can a piece of A4 paper be folded so that it's thick enough to reach the moon?

Continuum between addition, multiplication and exponentiation?

An integer is an $n$th power if that holds true for all moduli

How would one be able to prove mathematically that $1+1 = 2$?

How to use fundamental theorem of arithmetic to conclude that $\gcd(a^k,b^n)=1$ for all $k, n \in$ N whenever $a,b \in$ N with $\gcd(a,b)=1$?

Why is it that if I count years from 2011 to 2014 as intervals I get 3 years, but if I count each year separately I get 4 years?

Is there any simple method to calculate $\sqrt x$ without using logarithm

Hidden patterns in the natural numbers

What are the formal names of operands and results for basic operations?

Apparently cannot be solved using logarithms

The last digit of $2^{2006}$

Is the sum and difference of two irrationals always irrational?

How to explain for my daughter that $\frac {2}{3}$ is greater than $\frac {3}{5}$?

Why are addition and multiplication commutative, but not exponentiation?

Solving $DEF+FEF=GHH$, $KLM+KLM=NKL$, $ABC+ABC+ABC=BBB$

Is multiplication not just repeated addition?

New posts in arithmetic

Computing $999,999\cdot 222,222 + 333,333\cdot 333,334$ by hand.

How do I explain 2 to the power of zero equals 1 to a child

Beginner: How to complete the induction case in a proof that all multiples are a product of the least common multiple

$2+2 = 5$? error in proof

Can a piece of A4 paper be folded so that it's thick enough to reach the moon?

Continuum between addition, multiplication and exponentiation?

An integer is an $n$th power if that holds true for all moduli

How would one be able to prove mathematically that $1+1 = 2$?

How to use fundamental theorem of arithmetic to conclude that $\gcd(a^k,b^n)=1$ for all $k, n \in$ N whenever $a,b \in$ N with $\gcd(a,b)=1$?

Why is it that if I count years from 2011 to 2014 as intervals I get 3 years, but if I count each year separately I get 4 years?

Is there any simple method to calculate $\sqrt x$ without using logarithm

Hidden patterns in the natural numbers

What are the formal names of operands and results for basic operations?

Apparently cannot be solved using logarithms

The last digit of $2^{2006}$

Is the sum and difference of two irrationals always irrational?

How to explain for my daughter that $\frac {2}{3}$ is greater than $\frac {3}{5}$?

Why are addition and multiplication commutative, but not exponentiation?

Solving $DEF+FEF=GHH$, $KLM+KLM=NKL$, $ABC+ABC+ABC=BBB$

Is multiplication not just repeated addition?