Rachel Riley

Rachel Riley is a British television presenter, mathematician, and author. She is best known for her work on the Channel 4 game show

Countdown, which she has presented since 2009.

Riley was born in Rochford, Essex, England, in 1986. She studied mathematics at Oxford University, where she graduated with a first-class honours degree. After graduating, she worked as a financial journalist for Bloomberg.

In 2009, Riley joined the cast of

Countdown as the show's resident mathematician. She quickly became a fan favorite, and in 2012, she was promoted to the role of main presenter.
Riley is a talented mathematician and a popular television personality. She is also a role model for young girls, showing them that it is possible to be both smart and successful.

In addition to her work on

Countdown, Riley has also presented several other TV shows, including

The Gadget Show and

It's Not Rocket Science

. She has also written several books, including

The Hitchhiker's Guide to Calculus and

Absolutely Maybe: A Maths Miscellany

Riley is a passionate advocate for STEM education. She is a patron of the charity National Numeracy, and she frequently speaks out about the importance of math and science education for young people.

Riley is a role model for women in STEM. She is a smart, successful, and passionate woman who is not afraid to speak her mind. She is an inspiration to young girls everywhere, showing them that anything is possible if they set their minds to it.