About 20 years ago, the number of groups of order 1024 was reported to be 49487365422 in "A millennium project: constructing small groups", and this number was repeated in other sources. Recently, Burrell showed that the actual number is 49487367289 in "On the number of groups of order 1024". The discrepancy is explained in the latter paper.
BPP
- 675
- 4
- 16