Dwelling upon the triangular numbers

  • Context: Graduate 
  • Thread starter Thread starter K Sengupta
  • Start date Start date
  • Tags Tags
    Numbers
Click For Summary
SUMMARY

Hank, Jim, and Larry each selected distinct five-digit triangular numbers following the digit pattern DWELL, where each letter corresponds to a unique base-10 digit. Jim's number is particularly notable as it shares no digits with the numbers chosen by Hank or Larry. The problem was solved using a brute force approach, ensuring that none of the selected numbers contained leading zeros.

PREREQUISITES
  • Understanding of triangular numbers and their properties
  • Familiarity with digit patterns in numerical representations
  • Basic programming skills for implementing brute force algorithms
  • Knowledge of constraints in number selection, such as leading zeros
NEXT STEPS
  • Explore algorithms for generating triangular numbers efficiently
  • Learn about digit pattern recognition in number theory
  • Research brute force techniques in programming for combinatorial problems
  • Investigate constraints in number selection and their implications in problem-solving
USEFUL FOR

Mathematicians, computer scientists, and puzzle enthusiasts interested in number theory and algorithmic problem-solving.

K Sengupta
Messages
113
Reaction score
0
Each of Hank, Jim and Larry chose a different five-digit triangular number whose digits had the pattern DWELL, where each different letter represents a different base-10 digit. Jim's triangular number had no digit in common with either Hank's or Larry's.

Determine the numbers chosen by each of the three individuals.

Note: None of the numbers can contain any leading zero.
 
Mathematics news on Phys.org
There are two solutions
Jim = 27966
Hank = 15400
Larry = 58311

-and-

Jim = 27966
Hank = 58311
Larry = 15400
I used brute force to solve this.
 
jimmy, you've been brutal today.
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 1 ·
Replies
1
Views
4K
Replies
4
Views
7K
  • · Replies 1 ·
Replies
1
Views
5K
  • · Replies 2 ·
Replies
2
Views
5K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K