Was heißt »natürliche Zahl« auf Englisch?

Das Substantiv »natürliche Zahl« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Antonyme

What was at first a natural disaster rapidly became a man-made debacle.
She's a natural.
Anything that can be said in one natural language can be said in any other, but sometimes it takes many words to translate one word. In such cases it's often a good idea just to borrow that word.
"Is this really a natural expression?" "Let's ask Mr. Google."
Tibetan rug weavers use traditional designs and knotting. Hence their rugs have a simple, natural look.
That's perfectly natural.
He has a natural gift for speaking.
It doesn't sound natural.
It's completely natural.
I guess it's only natural.
They went to the museum of natural history.
Men's natural rights are equal; claim is met by claim, effort by effort, and force by force.
It's very easy to sound natural in your own native language, and very easy to sound unnatural in your non-native language.
This country is rich in natural resources.
Brown is not her natural hair color.
I'm a natural blonde.
It is completely natural for her to be mad.
This man is a linguist. It's natural that he know.
They have no natural predators.
They're dangerous, and they have no natural predators.