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What number goes into 23 evenly?
Only 1 and 23 (23 is a prime number).
Is 23 an integer or rational number?
An integer is a whole number. For instance, 1, 2, 3... There is no decimal part. So 23 is an integer. A rational number is a number that can be written as a/b. 23 can be written as 23/1, so 23 is a rational number. Thus, 23 is BOTH an integer and a rational number.
Why are decimal point line up and corresponding place value columns when adding decimals?
When adding up columns (not colums) of figures it is critical that figures with the same place value are added together (see below). Lining up the decimal points ensures that this is the case. If place vales were not lined up, 12 + 23 could be 242 (unit value of 23 lined up with tens value of 12), or 143 (tens value of 23 lined up with unit value of 12) or 35 (units and tens correctly aligned).
Is a composite number between 20 and 40?
the composite number is 23
What is a composite number between 20 and 40?
the composite number is 23
