### Instruction: What is the value of $2^3\times3\times5^3\times7$?### Response: Ok, so first we have $2^3=2*2*2=8$.
And then we have $5^3=5*5*5=125$.
So $2^3\times5^3=8*125=1000$.
And we can just multiply that by $3*7=21$ to get the final answer.
Which is $1000*21=21000$.