The CEO of one of America's biggest companies explains why his maths degree is more useful than his MBA

Jeff immeltJustin Sullivan/Getty ImagesGeneral Electric CEO Jeff Immelt.

General Electric CEO Jeff Immelt has all the qualifications you would expect of a Fortune 500 chief executive.

The Cincinnati-born son of a GE employee studied at Dartmouth and earned a Harvard MBA before working his way up at the industrial giant he now helms.

But Immelt says his most invaluable qualification is not the MBA — it’s his undergraduate degree in maths.

“I use my maths major every day — I don’t use the MBA quite as much,” Immelt said, speaking at Business Insider’s IGNITION 2015 conference on Wednesday.

“My intellectual curiosity goes more toward problem solving than spreadsheets.”

Of course, Immelt said, he understands the mechanics of running a business — all the things you learn in business school,.

But running a company, to Immelt, is really about problem solving. And that’s something he learned about in his undergraduate studies, due to “the inherent intellectual curiosity around maths and physics.”

That has stayed with Immelt throughout his career.

“I’m just curious about everything,” he said. “I can view every situation as a problem to be solved, and I’ve never lost my passion for that as I’ve grown in my career.”

Read more about the IGNITION 2015 conference here.

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