DO you see a number?

If so, what number?

DO you see a number?  If so, what number?

This headline made me assume it would be more challenging 

https://scoop.upworthy.com/what-number-you-see-optical-illusion-viral

This headline made me assume it would be more challenging   https://scoop.upworthy.com/what-number-you-see-optical-illusion-viral

Thousands of internet users from around the world have viewed the visual puzzle since it was posted on Twitter last week.

What number do you see in this picture? Viral optical illusion takes the internet by storm.

D J