2 and 5.......leave only 40% of any ten digit sequence as being prime........and although the pf has 5 primes...........11 is in double digits.........so there are only 4 single digit primes..................both single digits and the 1st double digit ten numbers..........as in 10 - 20........has 4 primes..........both do.........repetition..............twice fold.....................so any 10 digit series............has at max..........4 primes..............................in the 1st 100 numbers..................25 are prime..................1 out of 4.............25%.............diff parts are the math cannon that seem to have nothing to do with each other........................2 and 5.........like 25%.............but I am making this up.........





31 is also prime...........it is how pi starts out........................and 13 backwards.................13 is the 1st prime after the prime fundamental..................2 and 5 leave only 40% of any ten digits as a possibility of being prime..........the pf has 5 primes.........but 11 is in double digits........................4.........2 + 2 = 4..................2 * 2 = 4....................the processes of addition and multiplication are dead even at 2..........the only other number that holds true is zero........................nothing plus nothing is still nothing.............nada times nada...........is just more nada..........