Question

How many digits would be in the product 2 x 2 x 2 ..... x 2 (30 times)?
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Answer 1

Answer:

The given Question can be expressed as,

2^30

= (2^2)^15

= 4^15

= (4^3)^5

= 64^5

= 64 × 64 × 64 × 64 × 64

= 64² × 64² × 64

Now, 64² will have 4 digits

So, 64² × 64² will have 8 digits

Then, 64² × 64² × 64 will have 10 digits.

Reason is that, the number of digits you multiply with, that many digits the number has.

I solved this on a paper

64² × 64² × 64

= 4096 × 4096 × 64

= 16777216 × 64

= 1073741824

It has 10 digits

Step-by-step explanation:

HOPE THIS IS HELPFULL

Answer 2

Answer:

3 times

Step-by-step explanation:

As in 2 times we have to double it up so 2×30=150.