multiply and write answer without exponents

Question

(3x10^6)(2x10^4)

Is the answer 60,000,000 ?

Answer 1

No the answer should have 10 zeros. When you multiply two same numbers their exponents are added. so 10^6.10^4 = 10^(6+4). when it is like this (10^6)^4 then you multiply exponents and get 10^24.
so answer is 60,000,000,000