
Properties of The Number 137 - Mathematics Stack Exchange
Dec 2, 2016 · There are some other Properties for $137$ in Wikipedia. I found another Properties such that $137=2^7+2^3+1$ or the only way to write the number $137$ as a summation of two …
number theory - Is $137 = 2^7 + 3^2$ the unique sum of a power …
Dec 8, 2025 · Is $137 = 2^7 + 3^2$ the unique sum of a power of $2$ and a power of $3$? [closed] Ask Question Asked 30 days ago Modified 30 days ago
geometry - How to calculate opposite direction angle
Jun 10, 2015 · I searched but couldn't find on Google: My question is, how do I find the opposite direction of an angle, for example 170 degree, how do I calculate the opposite direction in …
Show that number is divided by $137$? - Mathematics Stack …
Oct 15, 2018 · I want to show that if we are given a $4$ -digit number and "double" it, the $8$ -digit number that we become is divided by $137$. How can we show this? Could you give me …
How do you calculate the modulo of a high-raised number?
I need some help with this problem: $$439^{233} \\mod 713$$ I can't calculate $439^{223}$ since it's a very big number, there must be a way to do this. Thanks.
calculus - Exponential Decay Question: The Half-Life of Cesium …
Aug 6, 2015 · Exponential Decay Question: The Half-Life of Cesium-137 is 30 Years. Suppose We Have a 100-mg Sample. Ask Question Asked 10 years, 5 months ago Modified 10 years, 5 …
Polynomial system of equations over integers
Jul 30, 2023 · Not that it helps in this case, but you can also subtract the equations, to get $ (y-1)^4- (x-1)^4=609$
Generate all possible combinations of 3 digits without repetition
May 22, 2013 · It's possible to generate all possible combinations of 3 digits by counting up from 000 to 999, but this produces some combinations of digits that contain duplicates of the same …
How to get the opposite angle? - Mathematics Stack Exchange
Aug 4, 2020 · It is the supplementary angle with a common sine value of the given angle. $$ \sin x =\sin \alpha$$ $$ x_1= \alpha, x_2= 180^ {\circ} -\alpha$$ It is not on the opposite side in the …
Find an integer $r$ with $0 ≤ r ≤ 10$ such that $7^{137 }≡ r (\\text ...
Oct 26, 2020 · Find an integer r r with 0 ≤ r ≤ 10 0 ≤ r ≤ 10 such that 7137 ≡ r(mod11) 7 137 ≡ r (mod 11). [duplicate] Ask Question Asked 5 years, 2 months ago Modified 5 years, 2 months ago