When it comes to selling a business empire, may people choose their price based on assets, staff, and the love and time invested into building it.

That wasn't Barbara Corcoran's method—the real estate mogul chose her asking price based simply on the fact she liked the number.

It's not the first time Corcoran—who is a star on ABC's Shark Tank—has issued advice which doesn't track with traditional business practices.

She's famously not saved a "dime" of her wealth and says the best money she's ever spent was on a coat.

The decision to sell her company—the New-York based Corcoran Group—in 2001 seems to also have been motivated by both business acumen and sentiment.

Speaking on Instagram, Corcoran revealed she settled on a figure in her mind because it was her lucky number, and refused to accept any offers until she got it.

"I got an offer for $100,000 one day, I couldn't believe my good luck," Corcoran recalled. "I said 'I'll take it!' and then they changed their mind.

"Four years later someone else came by and offered me $20 million, I couldn't believe it."

She continued: "I thought for that much I'll ask them for even more. I said 'No I'll only take $66 million, exactly $66 million. It took them a year to shuffle around, look at the books, but what do think they paid me? $66 million."- Reports The Fortune