I’m pretty sure it is a prepositional phrase because it starts with during which is a preposition. It is not an appositive phrase because it doesn’t begin with: A,An, or The. (Hope this helps :) )
A= 7,11
B=2,3,7
C=2,2,2,5
Because 7x11 =77 when both are prime numbers
2x3x7=42 when all 3 are prime
And 2x2x2x5=40 when all 4 numbers are prime
With no money in his pocket, Santiago earns something to eat by helping a candy seller set up his market stall. Afterward, he realizes he was able to communicate perfectly with the candy maker even though the man spoke only in Arabic. Santiago thinks there must be a universal language that does not depend on words. He remembers how he had communicated wordlessly with his sheep and thinks, "Now it's happening with people."