A wasteful number is a number such that the number of digits in the prime factorization
of
(including powers) uses more digits than the number of digits in . The first few wasteful numbers are 4, 6, 8, 9, 12, 18, 20,
22, 24 ... (OEIS A046760).
A number that is not wasteful is called a frugal number (Pinch).
such that the number of digits in the prime factorization
of 
(including powers) uses more digits than the number of digits in 
. The first few wasteful numbers are 4, 6, 8, 9, 12, 18, 20,
22, 24 ... (OEIS A046760).
