Register
Login
Username
Password
Login
forgot your password?
Home
Forum
+0
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
HelpIneedHelp
Username
HelpIneedHelp
Score
36
Membership
Stats
Questions
9
Answers
4
9 Questions
4 Answers
0
4
2
+36
Number Theory
When a prime is divided by 60 the remainder is a composite number. Find the sum of the digits of this composite number.
●
●
HelpIneedHelp
Oct 30, 2024
0
6
3
+36
Number Theory
A regular a-gon, a regular b-gon, and a regular c-gon fit perfectly around a point. What is the largest possible value of c?
a-6, b-20, c-42, d-50, e-100
So far, I plugged in possible values
read more ..
●
●
●
HelpIneedHelp
Oct 29, 2024
0
6
1
+36
Number Theory
In the triangular array below, different prime numbers p1, p2, .... pn are written in the bottom row. Then in each box, we write the product of the two numbers below it. The number K=p1^a1,p2^a2,pn^an is written in the box at
read more ..
●
HelpIneedHelp
Oct 29, 2024
0
6
2
+36
Number Theory
Carl writes eight consecutive three-digit numbers on a blackboard. Each number that Carl writes is divisible by its units digit (none of which are equal to 0). What is the sum of the digits of the smallest number that Carl wrote?
●
●
HelpIneedHelp
Oct 29, 2024
0
7
2
+36
Number Theory
How many three-digit numbers are equal to five times the product of their digits?
●
●
HelpIneedHelp
Oct 29, 2024
+1
3
1
+36
Combinations
Each vertex of cube a b c d e f g h is colored either black or white. Find the number of colorings in which all four vertices of some face have the same color.
●
HelpIneedHelp
Oct 24, 2024
0
3
2
+36
Help
Given a sequence which contains the numbers $1$ through $8,$ a move consists of moving one of the numbers to the front of the sequence. For example, for the sequence $(1, 5, 8, 3, 6, 2, 7, 4),$ we can move the number $6$ to the front, which results in the
read more ..
●
●
HelpIneedHelp
Oct 23, 2024
+1
3
1
+36
Help
1. ) Ava, Lucero, and Vinh are playing a game involving a single -sided die. The rules are as follows:
Ava rolls first. If she rolls a 1, 2 or 3 then she wins.
Otherwise, Lucero rolls next. If Lucero rolls a 4 or a 5 then she
read more ..
●
HelpIneedHelp
Oct 22, 2024
#1
+36
0
The remainder of the 1000th number in the fibonacci sequence when divided by 17 is 4
HelpIneedHelp
Oct 29, 2024
