Using the digits one through seven to create a seven digit number that can be rounded to 6,300,000

Question

Jessie Boone

Mathematics

1 June, 13:47

Using the digits one through seven to create a seven digit number that can be rounded to 6,300,000

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Asia Blackburn · Answer 1

Answer: 6,275,431

To round up to 6,300,000 you will definitely use 6 and 2 at the first digit. After that, you need a digit that worth above 5 so it will round up, not down. So the third digit would be 5 or 7 (since 6 is already used). After that, you could use the number freely for the last 4 digits.