India, Aug. 6 -- Optical illusions have a way of making us question what our eyes are really seeing, and this latest challenge is no different. Shared on Reddit, the image looks like nothing more than a spiral pattern at first glance. But hidden within the design is a seven-digit number that many people struggle to spot.

While some viewers quickly identify a few digits, others insist they cannot see any number at all.

The image was posted on Reddit's r/opticalillusions forum by a user who explained how it was created. "Made this one myself. The stripes are mathematically identical across the whole circle. The number only exists because the pattern shifts slightly inside the shape of each digit," the creator wrote.

They also hinted that...