Difference between revisions of "2011 UNCO Math Contest II Problems/Problem 1"
Pi3point14 (talk | contribs) (→Solution) |
Pi3point14 (talk | contribs) (→Solution) |
||
Line 5: | Line 5: | ||
== Solution == | == Solution == | ||
− | Let | + | Let <math>\floor x</math> indicate the largest integer less than or equal to x. To solve this problem, we simply need to find the powers of 3 that go into 85. Thus we get int(85/3). But that doesn't count the 2 3's in 9, so we need to add that to int(85/9), int(85/27), and int(85/81), giving us 41. |
== See Also == | == See Also == |
Revision as of 14:16, 13 August 2015
Problem
The largest integer so that evenly divides is . Determine the largest integer so that evenly divides .
Solution
Let $\floor x$ (Error compiling LaTeX. Unknown error_msg) indicate the largest integer less than or equal to x. To solve this problem, we simply need to find the powers of 3 that go into 85. Thus we get int(85/3). But that doesn't count the 2 3's in 9, so we need to add that to int(85/9), int(85/27), and int(85/81), giving us 41.
See Also
2011 UNCO Math Contest II (Problems • Answer Key • Resources) | ||
Preceded by First Problem |
Followed by Problem 2 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 | ||
All UNCO Math Contest Problems and Solutions |