Q: Can't up grade to Yosemite

Had to do a factory reset on Mac Book, running snow leopard now but want to upgade to Yosemite. Went into support/downloads but they only have 10.1 - 10.5 updates to download. I can't use those because I get an error that says my computer needs to be running 10.10 and a search for 10.10 only comes back with the results to download the updates 1-5

my goal is to run iCloud but need Yosemite or better. Right now running 10.6.8 MacBook 2.1 ghz processor.