Can Geometric Progressions Starting from One Sum to a Perfect Square?

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In summary, to find a series of numbers in geometric progression that add up to a square, one can use the sequence of squares and take the difference between subsequent squares to determine the numbers.
  • #1
Medtner
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"Write out a series of three or more different whole numbers in geometric progression, starting from one, so that the numbers should add up to a square. So like, 1 + 2 + 4 + 8 + 16 + 32 = 63 (one short of a square)"(can't find an actual real life example)

I can't seem to find an answer for this?
 
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  • #2
Just use a spreadsheet to try some more, there are two three-digit examples.
 
  • #4
1+3+9+27+81=121=11^2
 
  • #5
Medtner said:
"Write out a series of three or more different whole numbers in geometric progression, starting from one, so that the numbers should add up to a square. So like, 1 + 2 + 4 + 8 + 16 + 32 = 63 (one short of a square)"(can't find an actual real life example)

I can't seem to find an answer for this?
Try considering the sequence of squares, 0, 1, 4, 9, ..., and take the difference between subsequent squares. That will help you find the answer.
 

Related to Can Geometric Progressions Starting from One Sum to a Perfect Square?

1. What is a theorem?

A theorem is a statement that has been proven to be true using logical reasoning and existing knowledge. It is a fundamental concept in mathematics and other scientific fields, and it serves as a basis for further research and discoveries.

2. How is a theorem different from an axiom?

An axiom is a statement that is accepted to be true without proof, while a theorem must be proven using logical reasoning and existing knowledge. Axioms serve as the starting point for the development of theorems.

3. Is there a specific process for proving a theorem?

Yes, there is a general process for proving a theorem. It involves stating the hypothesis, using logical reasoning and existing knowledge to make deductions, and arriving at a conclusion that proves or disproves the theorem.

4. Can a theorem be revised or updated?

Yes, a theorem can be revised or updated if new evidence or discoveries contradict the original statement. This is a normal part of the scientific process, as new information and advancements can lead to changes in our understanding of a concept.

5. How does a theorem contribute to scientific knowledge?

A theorem contributes to scientific knowledge by providing a proven statement that can serve as a foundation for further research and discoveries. It also helps to establish relationships between different concepts and provides a deeper understanding of a particular topic.

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