How do you multiply #3.045*10^5 * 6.853*10^6#?

1 Answer
Apr 3, 2015

Regroup the coefficients and the exponents together and multiply separately
#3.045 * 10^5 * 6.853 * 10^6#
#= (3.045 xx 6.853) * (10^5*10^6)#

#3.045 xx 6.853 = 20.86738#
solve this by hand or use a calculator/spreadsheet

#10^5*10^6 = 10^(11)#
since #b^p xx b^q = b^(p+q)#

So
#3.045 * 10^5 * 6.853 * 10^6#
#= 20.86738 * 10^11#

or (if normalized)
#= 2.086738 * 10^12#