3×2 la puterea 40 + 2 la puterea 42

Răspuns :

3 x 2^40 + 2^42 = 2^40 x ( 3 x 1 + 2^2) = 2^40 x ( 3 + 4) = 2^40 x 7 
3x2⁴⁰+2⁴²=
=2⁴⁰x(3+2²)=
=2⁴⁰x7