ROSECODE 330
Buddy numbers
Consider the couple of integers (m,n) = (14, 224)
We have:
Let's call these pairs buddy numbers.
If (14,224) is the 3rd pair of buddy numbers, what is the 30th?
[My timing: < 1 sec]
Note: Assume there exists only one pair of odd buddy numbers.
We have:
- 14 = 2^1 * 7^1
- 224 = 2^5 * 7^1
- 14+1 = 3^1 * 5^1
- 224+1 = 3^2 * 5^2
Let's call these pairs buddy numbers.
If (14,224) is the 3rd pair of buddy numbers, what is the 30th?
[My timing: < 1 sec]
Note: Assume there exists only one pair of odd buddy numbers.