What do we call the front part of a decimal number?

Question

I have the following number.

23.45

There are two parts of this number. 23 and 45. What is the mathematical name of the 23 part?

It's called the "integer part." http://en.wikipedia.org/wiki/Decimal — Steve Kass, May 11 '15 at 15:25
The $23$ is called integer part. The $45$ is called fractional part. — user26486, May 11 '15 at 15:25

score 8 · Accepted Answer · answered May 11 '15 at 15:25

8

Often we call 23 the whole or integer part and .45 the decimal or fractional part.

answered May 11 '15 at 15:25

Ross Millikan

374,822

2

How about integral instead of integer? – user541686 May 11 '15 at 17:28
@Mehrdad I would refrain from using the word integral, just because it has a specific meaning in calculus – Cruncher May 12 '15 at 00:30

score 4 · Answer 2 · answered May 11 '15 at 18:33

4

According to this math.stackexchange post, you can also call them the characteristic (before) and mantissa (after). This what I heard when I was learning about floating point specifications.

answered May 11 '15 at 18:33

Victor Ma

141

score 3 · Answer 3 · answered May 11 '15 at 15:25

3

According to Wikipedia, it is the integer part or the integral part.

http://www.wikipedia.org/wiki/Decimal

answered May 11 '15 at 15:25

Thomas Andrews

177,126

What do we call the front part of a decimal number?

3 Answers3