Elementary Number Theory Problems 4.3 Solution (David M. Burton's 7th Edition) - Q11 Paid Members Public
My Solution for "Assuming that $495$ divides $273x49y5$, obtain the digits $x$ and $y$."
Elementary Number Theory Problems 4.3 Solution (David M. Burton's 7th Edition) - Q10 Paid Members Public
My Solution for "Prove that no integer whose digits add up to $15$ can be a square or a cube. [Hint: For any $a$, $a^{3} \equiv 0$, $1$, or $8$ $\pmod 9$.]"
All Solutions for Insomnia Sufferers - 4 Paid Members Public
My fourth article for solutions for insomnia. I want to share the various experiences I’ve gathered over many years in dealing with insomnia, covering both physiological and psychological aspects, and even a bit of occult.
All Solutions for Insomnia Sufferers - 3 Paid Members Public
My third article for solutions for insomnia. I want to share the various experiences I’ve gathered over many years in dealing with insomnia, covering both physiological and psychological aspects, and even a bit of occult.
All Solutions for Insomnia Sufferers - 2 Paid Members Public
My second article for solutions for insomnia. I want to share the various experiences I’ve gathered over many years in dealing with insomnia, covering both physiological and psychological aspects, and even a bit of occult.
All Solutions for Insomnia Sufferers - 1 Paid Members Public
In this article, I want to share the various experiences I’ve gathered over many years in dealing with insomnia, covering both physiological and psychological aspects, and even a bit of occult.
Elementary Number Theory Problems 4.3 Solution (David M. Burton's 7th Edition) - Q9 Paid Members Public
My Solution for "Find the remainder when $4444^{4444}$ is divided by $9$. [Hint: Observe that $2^{3} \equiv -1 \pmod {9}$.]"
Elementary Number Theory Problems 4.3 Solution (David M. Burton's 7th Edition) - Q8 Paid Members Public
My Solution for "For any integer $a$, show that $a^2 - a + 7$ ends in one of the digits $3, 7$, or $9$."
