Question

If log10³ =0.4771 then thenumber of digits in 3⁴⁰ is​

Answer 1

Answer:

log

10

3=0.477

⇒3=10

0.477

⇒3

40

=10

(0.477)

×40

3

40

=10

0.477×40

=10

19.080

=10

19.1

∴There are 19 digits