Numbers 1:33

1:33 Those of them who were numbered from the tribe of Ephraim were 40,500.

Numbers 26:37

26:37 These were the families of the Ephraimites, according to those numbered of them, 32,500. ¹  These were the descendants of Joseph by their families.

[26:37]  ¹ sn This is a significant reduction from the first count of 40,500.