A rational number in decimal form where the denominator has one or more prime factors other than 2 and 5.
A decimal is a rational number if it ever ends, or if it repeats the same single digit or set of digits forever.
When you convert a fraction to a decimal sometimes the decimal repeats forever. For example 1/3 as a decimal = 0.333333333.... (or 0.3 "recurring"). Another example is 1/7=0.142857142857.... (or 0.142857 recurring).
It means the same digit or group of digits keeps appearing again and again and again and . . . . .
A palindrome reads the same forward and in reverse. This tells me that at leastthe first digit and the last digit must be the same. So it's not possible to have a6-digit palindrome "with no same digits".The largest 6-digit palindrome, with just enough repetition of digits to make it apalindrome and no more, would be 987,789 .
The smallest ten-digit number that has two digits the same is 1000000000. However, this number does not meet the requirement of having two digits the same. The smallest valid ten-digit number with two digits the same is 1000000001, where the digit '0' appears eight times and '1' appears twice.
44? ? ?
98
987654
10,234
No.
42.21 or 84.42
84.42 or 42.21