British:
10= ten (1)
100= hundred (2)
1000= thousand (3)
10,000= ten thousand (4)
100,000= hundred thousand (5)
1,000,000= million (6)
10,000,000= ten million (7)
100,000,000= hundred million (8)
1,000,000,000= thousand million (9)
10,000,000,000= ten thousand million (10)
100,000,000,000= hundred thousand million (11)
10,00,000,000,000= billion (12)
10,000,000,000,000= ten billion (13)
100,000,000,000,000= hundred billion (14)
1,000,000,000,000,000= thousand billion (15)
So that's only A THOUSAND BILLION
BTW I'm an astronomer and 1 light year is 9,460,528,400,000 km (you can just say 10 billion km)
If you wanna thank me then send an e-mail to dewinsmananton@hotmail.co.uk
[[ If you want the american way, this is it: 10= ten (1) 100= hundred (2) 1000= thousand (3) 10,000= ten thousand (4) 100,000= hundred thousand (5) 1,000,000= million (6) 10,000,000= ten million (7) 100,000,000= hundred million (8) 1,000,000,000= billion (9)10,000,000,000= ten billion (10) 100,000,000,000= hundred billion (11) 10,00,000,000,000= trillion (12) 10,000,000,000,000= ten trillion (13) 100,000,000,000,000= hundred trillion (14) 1,000,000,000,000,000= quadrillion (15) ]]
10^15 power
"Second power" means that you multiply something with itself. In this case, (10 + 15) (10 + 15).
It is: 1.3*10^15 = 1,300,000,000,000,000
10^15 = 1,000,000,000,000,000 (one quadrillion).
10 to the power of -15 is 1/10^15. (1/1,000,000,000,000,000 [15 zeroes])It can also be written as 0.000000000000001 (There are 15 zeroes).OR -1,000,000,000,000,000 (15 zeroes).
1000000000000000000 that is the answer
25
15 x 10-3 = 15 ÷ 103 = 15 ÷ 1000 = 0.015
25
25
10 to the power of 15 when multiplying items with the same base (in this case 10) you simply add the powers
102 + 15 => 100+15 => 115 ans