If 30! = 2652528598121a10586363088b80000000, what is a and b?
56974
Determining the missing digits of $15! \equiv 1\square0767436\square000$ without actually calculating the factorial
91690
Which of the numbers $99^{100}$ and $100^{99}$ is the larger one?
106380
What is $n!$ when $n=0$?
107008
Find the remainder when $45!$ is divided by $47$?
56624
Prove that $0!+1! + 2! + 3! + ..... + n!$ $\neq$ $p^\text{r}$, where $n \geqslant 3$ and $n$, $p$ and $r$ are three integers
149939
Number of ordered pairs $(a,b)$ such that $ab \le 3600$
51666
If $\frac{a(26.273)^b}{a(27.165)^b}=1.0065809$, find the values of $a$ and $b$
64668
Verify that $4(29!)+5!$ is divisible by $31$.
27538
Last Two Digits Problem
6096
If $A+B=AB$ then $AB=BA$
151375
There are $3$ Zero-Sum Numbers!
28734
Why is "a" != "a" in C?
71012
If $a, b$ are positive integers such that $a|b^2, b^2|a^3,....$ then $a=b$.
68903
The number $2^{29}$ has exactly $9$ distinct digits. Which digit is missing?
71150
1000 * 60 * 60 * 24 * 30 results in a negative number
90068
Calculating the number of times a digit is written when given two numbers
148859
Determine $4$ specific digits in $34!$