Numeric literal syntax

Why use this example

Use this pattern to confirm Solidity arithmetic and unit behavior before putting the same expression into a contract. The entry isolates numeric literal syntax so its input, result, and state changes stay easy to compare.

Solidity to run

uint256 grouped = 1_000_000
uint256 scientific = 2e6
uint256 hexadecimal = 0x2a

grouped
scientific
hexadecimal

Official Solidity reference

Compare this focused investigation with the complete language definition in the Solidity documentation.

What to expect

The three literal forms evaluate to 1,000,000, 2,000,000, and 42 without losing their uint256 type.

Continue the investigation

Change a value, add another expression, or open Inspect after the run. Accepted entries remain available to the next entry, and the clean replay keeps the complete result reproducible.