1E8

1e8 is the decimal scientific notation for the number 1 × 10^8, which equals 100,000,000. The notation is widely used in mathematics, science, and computing to express large numbers succinctly. In decimal form, 1e8 equals 100,000,000; in words, one hundred million. The "e" denotes an exponent, indicating a power of ten.

In computing, 1e8 is commonly used as a floating-point literal. In many programming languages (such as C, C++, Java, JavaScript, and Python), the expression 1e8 evaluates to a floating-point value of 100,000,000.0. Because 100,000,000 is less than 2^53, it is exactly representable in IEEE 754 double precision; however, in single precision it may not be exact. Some languages also allow the integer literal 100000000 to denote a whole number without implying floating-point semantics.

Notable properties include that 1e8 is a fixed positive integer value, equal to 10^8. In scientific contexts, 10^8 is a common scale for large counts or measurements. The use of 1e8 is often preferred in code for readability and to avoid handling long sequences of digits.

Alternative representations include 10^8, 1 × 10^8, and 100 million. For readability in some locales, 100,000,000 may be used as a standard decimal notation. In sum, 1e8 is a compact form for the eight-figure integer 100,000,000 and is widely supported across mathematical and computing contexts.