using System;

//before:
int mbDec = 1048576;
int mbHex = 0x100000;
int mbBin = 0b100000000000000000000;

//in version 7:
int mbDec2 = 1_048_576;
int mbHex2 = 0x10_00_00;
int mbBin2 = 0b1_0000_0000_0000_0000_0000;

var eqial1 = mbDec2 == mbHex2;
//eqial1 is true
var eqial2 = mbDec2 == mbBin2;
//eqial2 is true

Console.WriteLine(eqial1);
Console.WriteLine(eqial2);