Apple's market value hovered just shy of the $3 trillion mark on Monday, following a stunning run over the past decade that has turned it into the world's most valuable company.

The Apple-1 is one of only 60 or so remaining of the original 200 that were designed and built by Steve Jobs and Steve Wozniak in 1976 and 1977.

With Apple becoming the world's first publicly traded company valued at $1 trillion, we're asking: what does a trillion really look like? Top mathematicians sent some examples we can relate to.