MSNBC anchor Brian Williams is facing criticism after making a simple math error on television Thursday night.

The former “NBC Nightly News” host and a guest, The New York Times editorial board member Mara Gay, were discussing a tweet posted Tuesday about former Democratic presidential candidate Mike Bloomberg’s campaign spending. The billionaire spent $500 million on advertising before dropping out of the 2020 race this week, money that some have argued could have been spent elsewhere.

“Bloomberg spent $500 million on ads. The U.S. population is 327 million. He could have given each American $1 million and still have money left over, I feel like a $1 million check would be life-changing for people. Yet he wasted it all on ads and STILL LOST," Williams read, quoting a Twitter user’s post.

“It’s an incredible way of putting it,” Williams reacted.

“It’s an incredible way of putting it. It’s true,” Gay said. “It’s disturbing.”

Williams and Gay did not accurately fact-check the math, however. $500 million divided evenly between 327 million people would be approximately $1.53 for each person.

“Brian Williams” became a trending topic on Twitter Thursday night and Friday morning as social media users reacted to the blunder.

MSNBC’s Brian Williams reads a tweet: "Bloomberg spent $500 million on ads. U.S. Population, 327 million. He could have given each American $1 million"



NYT Editorial Board Member Mara Gay: “It’s an incredible way of putting it. It’s true. It’s disturbing”



It's $1.53 per person pic.twitter.com/dIiwCESgh8 — Ryan Saavedra (@RealSaavedra) March 6, 2020

Brian Williams just shared this on screen like it was accurate, and did it with enough confidence he had me pulling out a calculator and thinking *I* was tripping. pic.twitter.com/YtUfV0LuqX — Jay Smooth (@jsmooth995) March 6, 2020

Here is Brian Williams, a lead anchor at NBC News and Mara Gray, a NY Times Editorial Board Member not passing 3rd grade math.



49 Seconds of stunning TV. pic.twitter.com/y1YPlaH6bp — YS (@NYinLA2121) March 6, 2020

Mara Gay of the New York Times and Brian Williams of MSNBC claimed tonight that Mike Bloomberg could have given every American one million dollars and still had money left over afterwards. I didn't realize Mike Bloomberg had $327 trillion dollars 😂 — Michael Tracey (@mtracey) March 6, 2020

It wasn't just Brian Williams and Mara Gay. There's a director, there's a producer, there's a graphics person... Either all of them are dopes or Brian Williams' staff really hates him. — neontaster (@neontaster) March 6, 2020

This is just unacceptable for a major cable show:

I’m not sure what’s worse...

The @nytimes reporter flubbing the math, Brian Williams face planting the math or @MSNBC producers not doing basic fact checking before creating that full screen for tv? https://t.co/m6NadeAzR0 — 🇺🇸 ERIC BOLLING 🇺🇸 (@ericbolling) March 6, 2020

Williams and MSNBC have not appeared to address the error as of Friday morning, but Gay joked about it.

“Buying a calculator, brb,” she tweeted Friday.

Meanwhile, Fox News reports the original author of the viral tweet has since sent her Twitter account to private with an updated bio: “I know, I’m bad at math.