Choose all of the correct statements.

6.3 × 107 is approximately 20 times larger than 3.1 × 108.
19.6 × 106 is approximately 65 times larger than 3.0 × 105.
8.6 × 10−6 is approximately 41 times larger than 2.1 × 10−5.
5.9 × 10−6 is approximately 28 times larger than 2.1 × 10−7.