On December 20, 2023, Brent will stop offering office hours.
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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
Good question, Phillip.
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