positiv nonzero integers ("numbers")...1, 2, 3, 4, 5...
bigger numbers mae hav fakters (or not)
zampel: yu kan fakter 10 intu 2 & 5. that meen 2*5=10
different number: 15, mae hav different fakters such as 3 & 5
but also hav a kommon fakter tween 10 15...5 is a fakter av both so it is kommon
GCF=biggest kommon fakter tween 2 or more numbers
-------------------- LCM is bout frakshuns
if yu want tu add or subtrakt 2 frakshuns, yu need a kommon bottom number
thats the LCM