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			61 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| id: 5900f3ba1000cf542c50fecd
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| title: 'Problem 78: Coin partitions'
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| challengeType: 5
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| forumTopicId: 302191
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| dashedName: problem-78-coin-partitions
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| ---
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| 
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| # --description--
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| 
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| Let p(n) represent the number of different ways in which n coins can be separated into piles. For example, five coins can be separated into piles in exactly seven different ways, so p(5)=7.
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| 
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| <div style='text-align: center;'>
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| 
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| | Coin piles        |
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| | ----------------- |
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| | OOOOO             |
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| | OOOO   O          |
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| | OOO   OO          |
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| | OOO   O   O       |
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| | OO   OO   O       |
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| | OO   O   O   O    |
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| | O   O   O   O   O |
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| 
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| </div>
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| 
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| Find the least value of `n` for which p(`n`) is divisible by one million.
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| 
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| # --hints--
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| 
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| `coinPartitions()` should return a number.
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| 
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| ```js
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| assert(typeof coinPartitions() === 'number');
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| ```
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| 
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| `coinPartitions()` should return 55374.
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| 
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| ```js
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| assert.strictEqual(coinPartitions(), 55374);
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| ```
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| 
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| # --seed--
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| 
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| ## --seed-contents--
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| 
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| ```js
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| function coinPartitions() {
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| 
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|   return true;
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| }
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| 
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| coinPartitions();
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| ```
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| 
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| # --solutions--
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| 
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| ```js
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| // solution required
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| ```
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