p=9,8•1030•10900

To calculate \( p = 9.8 \times 10^{30} \times 10^{900} \), you can combine the powers of 10.

Since \( 10^{30} \times 10^{900} = 10^{30 + 900} = 10^{930} \), you multiply the coefficients:

\[ p = 9.8 \times 10^{930} \]

So,

\[ p = 9.8 \times 10^{930} \]

This is the final result.