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The number 15
is 16 minus 1,
or 2 to the power 4 less 2 to the power zero
2 is the first prime

The prime factors of 15
are 3 and 5
The sum of these factors is 8
8 is 2 cubed

The sum of the digits in 15 is 6
6 is a perfect number
The absolute difference of the digits is 4
4 is a perfect square

The difference between perfect number 6
and perfect square 4,
is 2
2 is the only even prime

So, after all of this,
here are 15 words of advice
for success in mathematics
and life

Go deep and broad
Aim high, not low
Be honest, sincere and patient
And persevere

Copyright © Russell Boyle

Advice by Russell Boyle

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