[Emerald U.]

Human Calculator​

Can you multiply 7,686,369,774,870 by 2,465,099,745,779—all in your head?

Image source: indel Media/Pexels

In 1980, a brilliant woman named Shakuntala Devi did just that. She answered the massive math problem in just 28 seconds—faster than most of us could even write the numbers down! It earned her a spot in the Guinness World Records with the world’s fastest human calculation.

And if you’re curious, the answer is: 18,947,668,177,995,426,462,773,730. Makes your old times table drills seem pretty tame, doesn’t it?

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