I'm not a number, but start off with one.
And in some cases, I'll end up with tons.
Divide and multiply is what I do,
But only in the power of two.
Mathematics is none of my kind.
My job is vital, keep that in mind.
Who am I? That's the question.
Feel free to make a suggestion...
Applied science is not my field,
But if I tell you, my identity is instantly revealed!