Question: Number of Divisors

Comment on Number of Divisors

Hey Brent,

is it possible o solve this one without having to list the factors? Some formula? Rule?

Thanks,

Philipp
gmat-admin's picture

Good question, Phillip.

Yes, there's a formula for counting divisors. It's a few videos away at https://www.gmatprepnow.com/module/gmat-integer-properties/video/828

That said, the formula might not save a lot of time when you're working with relatively small numbers.

Cheers,
Brent

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