Number of natural numbers smaller than a given natural number!
110383
How many numbers less than $m$ and relatively prime to $n$, where $m>n$?
141073
Are there fewer positive integers than all integers?
59357
How many numbers are in the Fibonacci sequence below a given threshold?
41354
Binomial-coefficients if, k, m, n natural numbers and k \leq n the result of
80744
What is the number of strings at size $n$ that is constructed from ${a,b,c,d}$ and there is an even num of $a$
143357
Comparing $2^n$ to $n!$
27859
least common multiple of $\{1,2,...,n\}$ is bigger than $2^{n-1}$
86902
Consider the smallest number in each of the $n\choose r$ subsets (of size $r$) of $S=\{1,2,\ldots,n\}$...
141227
How to show the integers have same cardinality as the natural numbers?
147428
Probability of picking an odd number from the set of naturals?
126015
Elementary number theory in sets
72402
Summation of natural number set with power of $m$
73794
counting with max and min restrictions
9009
$n$ choose $k$ where $n$ is less than $k$
3217
Construction of uncountably many non-isomorphic linear (total) orderings of natural numbers
35899
Simple logic problem: Finding largest and smallest number among 3 numbers
136918
How to determine the smallest numbers with $n$ factors