8×1017

8×10^17 is a large number commonly written in scientific notation. It equals 800,000,000,000,000,000 in decimal form and is read as eight times ten to the seventeenth.

In common naming systems, 8×10^17 is 0.8 quintillion in the short scale (where 10^18 is one quintillion) and eight hundred quadrillion in the short-scale naming of 10^15 as a quadrillion. It is also convenient to view it as 8 × 10^17 = 0.8 × 10^18.

Contexts and uses: Numbers of this magnitude frequently appear in science to express quantities that would be unwieldy in ordinary decimal form. For example, 8×10^17 meters corresponds to about 8×10^17 / 9.46×10^15 ≈ 84.5 light-years, placing it in the nearby stellar neighborhood. If interpreted as seconds, 8×10^17 s equals about 2.54×10^10 years, illustrating how quickly time scales become cosmically large. In mathematics, 8×10^17 is an exact integer when the exponent represents a factor of ten, and it can be factored as 2^3 × 3^2 × 113.

Overview: The value serves as a compact representation of a large magnitude, useful for simplifying notation in physics, astronomy, and related fields. Without units, it remains a purely numerical quantity; its practical meaning depends on the context and the units attached.