I have found an interesting (and novel) result that I would like to submit to the American Mathematical Monthly. I am aware of the journal's prestige and I understand that my result likely would not warrant regular publication. I am looking to submit my finding and brief proof as "filler", however, their website does not elucidate much information other than a LaTex template for such submissions.
My question to anyone who is familiar with the filler submission process of the American Mathematical Monthly, what are the technical requirements of such a submission? I understand that they are shorter than typical papers but the tables of contents I see online do not seem to include any for length reference.