www.reference.com/article/roman-numeral-one-million-d1f95850e6177d1b

The Roman numeral for one million is the letter M with a horizontal line across the top. This line, which is rarely used, indicates that the number should be multiplied by 1,000. Since the letter M represents 1,000, M plus the line represents 1,000 multiplied by 1,000.

www.reference.com/article/numeric-numbers-c5354e472c02cb5e

A numeric number, more commonly referred to as a numeral, is a symbol or name used to represent a number. A numeral may be expressed in words, such as seventy-five, or by arranging digits in a place-value system, such as by writing 75.

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You can express 5 million in Roman numerals in one of several ways. The most common way is with a V with two horizontal lines above it. Another way it is commonly expressed is as 5 Ms with single horizontal lines on top, or it can be written as ((V)).

www.reference.com/article/meaning-numerical-order-7099285d76ee357b

A numeric order is a way to arrange a sequence of numbers and can be either ascending or descending. For example, an ascending numerical order of area codes for the United States starts with 201, 203, 204 and 205.

www.reference.com/article/numerical-filing-systems-f0fa9ac7e0d96e5a

A numerical file system is a system based on ordering by an increasing succession of numbers. Medical offices, libraries and other locations often use numerical systems for filing.

www.reference.com/article/numerical-data-6fdc0006ee48553

Numerical data is data that is expressed with digits as opposed to letters or words. For example, the weight of a desk or the height of a building is numerical data.

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Numerical expression is a mathematical equation that contains only numbers and operation symbols. It contains no variables, which are unknown numbers that are often expressed as letters, such as x or y.