Expressing an arbitrary natural number as the difference of squarefree ones
58171
Two problems about Squarefree numbers
90102
How to prove that $p-1$ is squarefree infinitely often?
6803
Expression for power of a natural number in terms of binomial coefficients
153969
The "elements" of a real number
135212
The square of an integer has form $3n$ or $3n+1$
52861
Natural Numbers and Well ordering
145519
Prove that for any natural number $n>1$, we have $(2n)!<(n(n+1))^n$
47720
Isomorphism from Natural numbers to the Odd Natural numbers
21383
Can every even integer be expressed as the difference of two primes?
24582
Is the set of sequences of natural numbers with trailing zeros countable?
110958
How to solve for any given natural number n?
48051
Proof related to natural numbers
124890
Divisibility within a block of natural numbers
79677
Difference of squares - number of representations
138569
Is the “sum of all natural numbers” unique?
138081
How to determine whether a number can be written as a sum of two squares?
18633
Prove every odd integer is the difference of two squares