The same thing as one fifth of any ten things - two.
5/10
100,000
2
1.2 times ten to the fifth power in decimal notation is 120,000
2.5 times 10 to the fifth is 2,500,000
1 fifth of ten is 2 * 4 is 8
2
It is 100000.
aa
10,000,000,000,000,000,000 Ten Trillion
105