remainder vs number

remainder and number both are nouns.

Word	Noun	Adjective	Verb	Adverb
remainder	Yes	No	Yes	No
number	Yes	No	Yes	No

As nouns, number is a hypernym of remainder; that is, number is a word with a broader meaning than remainder:

remainder: the number that remains after subtraction; the number that when added to the subtrahend gives the minuend
number: a concept of quantity involving zero and units

As nouns, number is a hypernym of remainder; that is, number is a word with a broader meaning than remainder:

remainder: the part of the dividend that is left over when the dividend is not evenly divisible by the divisor
number: a concept of quantity involving zero and units

remainder (noun)	number (noun)
a piece of cloth that is left over after the rest has been used or sold	an item of clothing
the number that remains after subtraction; the number that when added to the subtrahend gives the minuend	the property possessed by a sum or total or indefinite quantity of units or individuals
the part of the dividend that is left over when the dividend is not evenly divisible by the divisor	a clothing measurement
something left after other parts have been taken away	one of a series published periodically
	a symbol used to represent a number
	a numeral or string of numerals that is used for identification and may be attached to accounts, memberships, etc.
	the number is used in calling a particular telephone
	a short performance that is part of a longer program
	the grammatical category for the forms of nouns and pronouns and verbs that are used depending on the number of entities involved (singular or dual or plural)
	a numbered item in a series
	a select company of people
	a concept of quantity involving zero and units

remainder (verb)	number (verb)
sell cheaply as remainders	place a limit on the number of
	determine the number or amount of
	enumerate
	give numbers to
	add up in number or quantity
	put into a group