21 lines
393 B
PHP
21 lines
393 B
PHP
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<?php
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define('MAX',1000);
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$max_len = 0;
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for($div = MAX; $div > 2; $div--) {
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$result = bcdiv('1',(string)$div,2000);
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for($len = 2; $len < 1000; $len++) {
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if(substr($result,10,$len) === substr($result,10+$len,$len)) {
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if($len > $max_len) {
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echo "Div: ".$div. " Len: ".$len."\n";
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$max_len = $len;
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$max_div = $div;
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}
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break;
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}
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}
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}
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echo $max_div;
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