Return true if the input is a Smith number in base ten. Otherwise, return false. Read about Smith numbers at http://en.wikipedia.org/wiki/Smith_number.
A Smith number must be positive and have more than one factor.
surface of a spherical planet
Back to basics 17 - white space
Longest run of consecutive numbers
Make a vector of prime numbers
Test within tolerance
Get input and output variable names
Split up vector or matrix delimited by NaNs
Remove TeX from string
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