Skip to main content
Roddy MacPhee's user avatar
Roddy MacPhee's user avatar
Roddy MacPhee's user avatar
Roddy MacPhee
  • Member for 3 years, 3 months
  • Last seen this week
3 votes

Does $a^3 = b^2$ imply $a$ is a perfect square?

3 votes

How many categories can we can put numbers into?

3 votes

Proof for a prime-generating sequence

2 votes

Finding primitive roots modulo n code

2 votes
Accepted

Have we met before?

2 votes

Number of Solutions of Discrete Logarithm Problem in modular field

2 votes
Accepted

Are these incremements a valid/useful pattern when mapping between modulo (crt)

1 vote
Accepted

Why does $(^n a)$ eventually become constant modulo $\phi (n)$.

1 vote

what is so special about the number $3$ in the $3n+1$ conjecture?

1 vote

Infinitely many primes of the form $4n+3$ proof

1 vote

Show that $2^{2^n}+5$ is divisible by $3$ for all $n \geq 1.$

1 vote

If P then Q is true and so is P. Then Q is not necessarily true, right?

1 vote

Small lemma on moving up multiplicative inverses of powers needs explanation

1 vote

A question arising from Fermat's little theorem.

1 vote

Find a solution to congruence system $x\equiv 3\pmod{7}$ and $x\equiv 9\pmod{13}$

1 vote

Can you explain the thought process behind this this modulo operation

1 vote

What mistake did i do here? Inverse modulo calculation

1 vote

Does this mean that there are no non trivial cycles in the Collatz Conjecture?

1 vote
Accepted

Multiplicative inverse of $[9]_{23}$

1 vote

Pigeonhole theorem

1 vote
Accepted

Looking for polynomials that generate primes for integers within a given interval

1 vote
Accepted

Finding the repeating decimal form of a fraction $\frac{1}{p}$

1 vote

Proof explanation: If $a\equiv b\pmod {p^n}$, then $a^p\equiv b^p\pmod {p^{n+1}}$

1 vote
Accepted

Luhn algorithm for odd and even card numbers?

1 vote

Parity Pattern of Triangle Numbers

1 vote

Probability a factor is odd

1 vote

Set theory with empty sets confuses me. Why is {Ø} ⊂ {{Ø}} false and why is {{Ø}} ⊂ {Ø, {Ø}} true?

1 vote
Accepted

Another Doubt Regarding Brocard's Problem, Specifically about Where I Can Proceed after Prime Factorisation

1 vote

For which ${n \in \mathbb{Z}^+_0}$ is the number ${2^n - 1}$ divisible by 7?

1 vote
Accepted

Calculating price of a Product after Comission without loss in original price