Can give ! consider these three numbers expressed in scientific notation: 2.4 × 104, 6.3 × 105, and 9.6 × 107. which number is the greatest, and by how many times is it greater than the smallest number? a. the greatest number is 9.6 × 107. it is 400 times greater than the smallest number. b. the greatest number is 6.3 × 105. it is 40 times greater than the smallest number. c. the greatest number is 6.3 × 105. it is 400 times greater than the smallest number. d. the greatest number is 9.6 × 107. it is 4,000 times greater than the smallest number.