Your answer is: One billion, two hundred thirty five million, six hundred seventy eight thousand, nine hundred and ten !
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1/1 is the easiest but you could also write it as 3/3 or 5/5 or 12356/12356
Answer: 78,910 km = 49,032.4 mi.
7
If repeats are allowed, we can use any of the 6 digits in any of the 5 positions. This means we have 5 choices each with 6 options. 65 = 7776. They fall in the form: 111111 111112 111113 111114 111115 111116 111121 ... 666665 666666 If repeats are not allowed, we must choose which number to exclude (6 choices) and then arrange the remaining 5 (5 * 4 * 3 * 2 * 1 = 120 choices). 6 * 120 = 720. These fall in this sort of pattern: 12345 12346 12356 12456 13456 23456 And all permutations of each of those.