20 zeroes: 2.5 × 1021 written in regular notation is 2,500,000,000,000,000,000,000
10 to the power of 10 to the power of 100 zeros! EDIT: It has 100 zeros. 10^10^100 is a googolplex (10^googol)
28 zeros
1060 has 60 zeros.
180 times 10 to the power of 4 is 1,800,000 which has five zeros in it
Ten.
100.
10 to the 60th power
7
Twenty.
A googlplex is 1 with a googol zeros after it. A googol is 10 to the power of 100.
To calculate the number of zeros in a factorial number, we need to determine the number of factors of 5 in the factorial. In this case, we are looking at 10 to the power of 10 factorial. The number of factors of 5 in 10! is 2 (from 5 and 10). Therefore, the number of zeros in 10 to the power of 10 factorial would be 2.
7 zero