Talk:Smallest Number which is Multiplied by 99 by Appending 1 to Each End

My bad for not actually checking the calculation when writing the proof for this:

The number in the article of Hunsucker and Pomerance is correct. (With a 5 instead of a 3 in the 5th last digit)

This is possibly unrelated, but is the prime factorization really necessary for a multiplication result? --RandomUndergrad (talk) 13:38, 23 March 2022 (UTC)