Considering there are 10 possible numbers, and you want 9 numbers to be chosen, then you multiply 10x10 to the 9th power and get 10,000,000,000 (10 billion) possible numbers.
When ever they use big numbers. Ex. 9450000000 = 9.45 × 10 to the 9th power
100 to the 9th power is 1,000,000,000,000,000,000 (one quintillion).
9 to the negative 9th power is 2.58117479e-9
There are seven digits: 8,000,000
The number is 58149737003040059690390169, and in scientific notation: 5.8149737 X 1025 upto 7 decimal digits..
112x9y9 128x2y7 -80x7y2 The GCF is 16x2y2
5,159,780,352
198359290368
20000000000 That is 20 to the 9th power
10,000,000,000
X to the 9th power