Note: This question has been severely edited from its original version to better fit the format of this site. Some answers below - including the accepted, correct answer - have been given based on the original question.
Consider the following two digital images below:
Although they depict two very different things, they share a strong common feature: They hide an identical 3-digits prime number within themselves.
Not only do the hide the identical number, but they hide it by the identical method.
If you apply the method on image one, you'll get the prime number.
If you apply the identical method in the identical way to the other image, you will get the same prime number.
What is the method to be applied? And which 3-digit prime number do both images hide?
Important hints & restrictions:
The answer to this puzzle is not an ambiguous or subjective solution. Subjective interpretation is not involved.
("...looks like..."; "...reminds me of..."; "...could be interpreted as...";... are all invalid concepts.)
The answer lies within the image itself and can not be 'forced' upon it by altering the data.
( "...paint everything black and draw the prime onto it...";... is not a valid answer. )
There is no hidden meta-data to the images.
(You can right-click & save it from here; or you may print it and then rescan it again; or you may simply take a good picture of you screen and use that; all of this will keep the image suitable for the method in question. However, you do need to use a computer to find the answer -- simply looking at the images does not suffice.)