The product of all the prime numbers less than 20 is closest to which of the following powers of 20 ?
Choose the correct choice from the following answers.
A) 10^9	B) 10^8	C) 10^7	D) 10^6	E) 10^5
2*3*5*7*11*13*17*19   2*19*3*17*5*13*7*11   38*51*65*77   By approximation   40*50*70*70   2000*4900   By approximation   2000*5000   10,000,000   10^7
<result>C</result>
The product of all the prime numbers less than 20 is closest to which of the following powers of 20 ?