# 5691

$t_title is "5691"

$t_subtitle is "(just those submitted by Firoozbakht)"

$t_adjust_path is "/~caldwell/curios/"

$t_class is "composite"

$nunber_id is "4540"

$t_meta['description'] is "One of many pages of prime number
curiosities and trivia. This page discusses 5691
Come explore a new prime today!"

Just showing those entries submitted by 'Firoozbakht': (Click here to show all)

p = 5*6*9*1 + 1 is the largest prime factor of 5691, and 5691 = p*(5+6+9+1). Note that 5691 is the only odd number with this property and also there exists only one even number with this property. [Firoozbakht]

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