16 lines
784 B
YAML
16 lines
784 B
YAML
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title: Find the sum of all the numbers that can be written as the sum of fifth powers of their digits.
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url: http://projecteuler.net/problem=30
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desc: |
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Surprisingly there are only three numbers that can be written as the sum of fourth powers of their digits:
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1634 = 1^4 + 6^4 + 3^4 + 4^4
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8208 = 8^4 + 2^4 + 0^4 + 8^4
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9474 = 9^4 + 4^4 + 7^4 + 4^4
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As 1 = 1^4 is not a sum it is not included.
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The sum of these numbers is 1634 + 8208 + 9474 = 19316.
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Find the sum of all the numbers that can be written as the sum of fifth powers of their digits.
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solution: We can safely assume that we don't have to search high values higher than 354294. Because 6*9^5 = 354294 is far from the value of 999999
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solutions:
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solve.php:
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desc: Basic Solution
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language: php
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