The correct answer seems to be 3452839, which is more apparent when you increase the contrast on the image.
Twitter users also recommended lying your phone screen flat for a clearer view of the numbers.
The University of Queensland's special Queensland Brain Institute branch had a simple explanation for vastly different responses when it came to optical illusions.
"Sometimes, our brain gets confused by what the eyes are trying to tell it," the institute wrote in a blog post.
"Our eyes and brain speak to each other in a very simple language, like a child who doesn't know many words. Most of the time that's not a problem and our brain is able to understand what the eyes tell it …
"Sometimes, however, the brain guesses wrong.
Initially a Facebook post that received fewer than 20 likes, this optical illusion is still being talked about now. Is the dress Gold and White or Black and blue?
Optical illusions happen when our brain and eyes try to speak to each other in simple language but the interpretation gets a bit mixed up ...
"A lot of scientists have worked very hard for many years trying to understand how optical illusions work. But the truth is, in many cases, we still don't know for sure exactly how our brain and eyes work together to create these illusions."
The image is reminiscent of "the dress", a viral internet phenomenon in 2015 that saw people largely divided over whether the dress was black and blue or white and gold.
Caitlin McNeill, a Scottish singer, originally posted the picture on Tumblr after her friend saw different colours in the photo and it prompted a viral media storm.
