: Using the Euclidean Algorithm to find the largest factor two numbers share. 3. Combinatorics and Counting
n=p1e1p2e2…pkekn equals p sub 1 raised to the e sub 1 power p sub 2 raised to the e sub 2 power … p sub k raised to the e sub k power mathematical olympiad primer pdf
: Calculating arrangements where order matters ( ) or does not ( : Using the Euclidean Algorithm to find the
(nk)=n!k!(n−k)!the 2 by 1 column matrix; n, k end-matrix; equals the fraction with numerator n exclamation mark and denominator k exclamation mark open paren n minus k close paren exclamation mark end-fraction 4. Synthetic Geometry mathematical olympiad primer pdf