The given expression is
[tex]14^{23}\times14^8[/tex]From the property of exponents if the base of the exponent is same and the base are multiply then the exponents values will add,
[tex]\begin{gathered} a^x\times a^x=a^{x+x} \\ \text{ h}ere\text{ , a=base \& x = exponent} \end{gathered}[/tex]Apply this property in the given exepression :
[tex]\begin{gathered} 14^{23}\times14^8=14^{23+8} \\ 14^{23}\times14^8=14^{31} \\ 14^{23}\times14^8=3.3882 \end{gathered}[/tex]Answer : 3.3882