List questions from divisibility

Published on 09 Apr 2026 - 0:30

813

Views

The sum of digits of $3(3x+3)$ is always $9$ for any $x$ between $1$ and $9$

Published on 26 Mar 2026 - 22:18

1.3k

Views

HCF of two huge numbers

Published on 12 Apr 2026 - 5:50

177

Views

Do we need to apply the Euclidean Algorithm before applying the Extended Euclidean Algorithm?

Published on 27 Mar 2026 - 20:12

267

Views

If $a^b=c^d$, then $c$ and $a$ are powers of the same number?

Published on 26 Mar 2026 - 6:21

800

Views

Division with dividend less than divisor

Published on 10 Apr 2026 - 22:39

97

Views

Find remainder of $\frac{17^{235}}{ 23}$

Published on 07 Apr 2026 - 6:51

126

Views

how can one show that if $m$ and $n$ are co-prime, then $U_n$ and $U_m$ are also co-prime?

Published on 28 Jun 2015 - 17:55

65

Views

Given a number $N$ and a prime $P$, how many numbers $\leq N$ are divisable by P but not by any smaller primes?

Published on 01 Apr 2026 - 0:12

66

Views

Is there a way to figure out the number of possible combinations in a given total using specific units

Published on 12 Apr 2026 - 8:53

101

Views

Number Theory- Mathematical Proof

Published on 27 Mar 2026 - 20:12

417

Views

Can we always write $gcd(x,y)$ as $ax+by$ in UFD?

Published on 10 Apr 2026 - 17:09

54

Views

GCD of many numbers divisible by another number

Published on 11 Apr 2026 - 22:47

540

Views

Are there any divisibility rules using 7?

Published on 09 Apr 2026 - 3:44

83

Views

Proving that $i! \mid (p-1)\cdot(p-2)\cdots(p-i+1)$ for $i < p$

Published on 03 Apr 2026 - 11:06

List Question

Triple fractions

The sum of digits of $3(3x+3)$ is always $9$ for any $x$ between $1$ and $9$

HCF of two huge numbers

Do we need to apply the Euclidean Algorithm before applying the Extended Euclidean Algorithm?

If $a^b=c^d$, then $c$ and $a$ are powers of the same number?

Division with dividend less than divisor

Find remainder of $\frac{17^{235}}{ 23}$

how can one show that if $m$ and $n$ are co-prime, then $U_n$ and $U_m$ are also co-prime?

Given a number $N$ and a prime $P$, how many numbers $\leq N$ are divisable by P but not by any smaller primes?

Is there a way to figure out the number of possible combinations in a given total using specific units

Number Theory- Mathematical Proof

Can we always write $gcd(x,y)$ as $ax+by$ in UFD?

GCD of many numbers divisible by another number

Are there any divisibility rules using 7?

Proving that $i! \mid (p-1)\cdot(p-2)\cdots(p-i+1)$ for $i < p$

Trending Questions

Popular # Hahtags

Popular Questions