Meaning of 1000L

I have a question on this code. what does the 1000L * 8L represents?

Example: bytesRec += networkInterfaces[i].GetIPv4Statistics().BytesReceived / 1000L * 8L;

Sorry new to here

Thank you

1 Answer

Suffixes specify number types. They instruct the C# compiler that an integral literal such as 1000 be considered a certain type of number—for example, a long (1000L)