Usually if the number is a three or more digits, then it is written as the digits, otherwise it is written as words.
Spell out whole numbers
when adding a prefix, the spelling of the root word doesn't change
Most style sheets recommend spelling out the numbers one to ten, then using numerals for the higher numbers. Some suggest spelling out one to twenty, which are common and short. In any case, there is no fixed rule, but numbers within a phrase should use the same form, as in "3 out of 100" or "4th place among the 240 starters", rather than spelling one and using a numeral for the other.
Just to add, FYI, the general rule for helping remember if a word should be spelled with "ie" or "ei" is: "I" before "E" except after "C". In other words, "receive" is spelled with a "c", so the "c" requires that you use the "ei" spelling after it. A word such as "believe" has an "l", not a "c", so it needs the "ie" spelling.
The correct spelling is receive (get, accept).Follows the spelling rule "I before E except after C."
The spelling "bylaw" is a rule or ordinance adopted by a group or association.
the spelling
There is no general rule. There is no general rule for primes in any interval and, by extension, there is none for composites.
The best rule is to look up the spellings in a reliable source.
Multiply them together.
Some are. As a general rule, prime numbers are better.
No. As a general rule, factors cannot be larger than the numbers they are compared to.
No. As a general rule, factors cannot be larger than the numbers they are compared to.
No. As a general rule, factors cannot be larger than the numbers they are compared to.
No. As a general rule, factors cannot be larger than the numbers they are compared to.
No. As a general rule, factors cannot be higher than the numbers they are compared to.
No. As a general rule, factors cannot be larger than the numbers they are compared to.
No. As a general rule, factors cannot be larger than the numbers they are compared to.