The product of all the prime numbers less than 10 is closest to which of the following powers of 10? Choose the most appropriate option.
A) 10^9
B) 10^2
C) 10^7
D) 10^6
E) 10^5
Quickly approximate   2, 3, 5, 7, = 210 =2.1x10^2   10^2
<result>B</result>
The product of all the prime numbers less than 10 is closest to which of the following powers of 10?