How does anything exist without time? It'd be completely nonexistent, it's like having an object that has no height or an object without length.
Numbers aren't real, their values are.
Values aren't really objects. I was referring how objects couldn't exist if there was no time.
All of your objections are related. Before I can explain how something could exist without time we must first dispell your notion that mathematical objects aren't "real."
First, a question: do you believe that mankind creates mathematical objects (such as numbers) or do you believe mankind discovers them?
For instance, consider the
Mandelbrot fractal. As you "zoom in" on a portion of the fractal "landscape," you will find a particular and specific (and beautiful) new shape of that landscape at various "magnifications."
A person on the far side of the universe could independently start looking at the mandelbrot fractal, "zoom in" the same amount and to the same location as a person here on Earth, and find exactly the same shape. This wouldn't be surprising at all.
Isn't that just like exploring the coastline of a new country that already exists "out there" --
discovering something rather than
creating it?
Now for contrast, consider something that we
do create: language. It certainly would be surprising to find someone from the far side of the universe that hasn't been exposed to our culture at all who spoke fluent English. This is because we don't discover languages; we create them.
Mathematical objects are discovered, not created. What it means to be "real" is to have an existence that isn't dependent on a conscious mind creating it -- mathematical objects are real because we don't create them. We find them. Then we describe them: just like a cartographer describes a newly discovered country.