2994
It is known that Robin 's inequality , if it ever fails to hold , will fail for a colossally abundant number " n " ; thus the Riemann hypothesis is in fact equivalent to Robin 's inequality holding for every colossally abundant number " n " " > " 5040 .
 person: Robin; person: Riemann; person: Robin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Robin; person: Riemann; person: Robin