Definition:Smith Number/Historical Note

Historical Note on Smith Number
The term Smith number was coined by.

He noticed the property in the phone number ($493$ - $7775$) of his brother-in-law Harold Smith:
 * $4937775 = 3 × 5 × 5 × 65837$

while:
 * $4 + 9 + 3 + 7 + 7 + 7 + 5 = 3 + 5 + 5 + 6 + 5 + 8 + 3 + 7 = 42$