45 lines
		
	
	
		
			828 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			45 lines
		
	
	
		
			828 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
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								---
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								id: 5900f4de1000cf542c50fff1
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								title: 'Problem 370: Geometric triangles'
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								challengeType: 5
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								forumTopicId: 302032
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								dashedName: problem-370-geometric-triangles
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								---
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								# --description--
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								Let us define a geometric triangle as an integer sided triangle with sides a ≤ b ≤ c so that its sides form a geometric progression, i.e. b2 = a · c .
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								An example of such a geometric triangle is the triangle with sides a = 144, b = 156 and c = 169.
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								There are 861805 geometric triangles with perimeter ≤ 106 .
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								How many geometric triangles exist with perimeter ≤ 2.5·1013 ?
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								# --hints--
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								`euler370()` should return 41791929448408.
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								```js
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								assert.strictEqual(euler370(), 41791929448408);
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								```
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								# --seed--
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								## --seed-contents--
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								```js
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								function euler370() {
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								  return true;
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								}
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								euler370();
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								```
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								# --solutions--
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								```js
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								// solution required
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								```
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