en.wikipedia.org/wiki/Substring

A substring of a string S {\displaystyle S} S is another string S ′ {\displaystyle S'} S' that occurs ... In the mathematical literature, substrings are also called subwords (in America) or factors (in Europe). Not including the empty substring, the number of substrings of a string of length n {\displaystyle n} n where symbols only ...

mathcentral.uregina.ca/QQ/database/QQ.09.13/h/jane1.html

A factor string is a name for a number written as a product of two or more factors. In a factor string, 1 may not be used as a factor. For example, a factor string for ...

www.showme.com/sh/?h=sexnzBw

Prime Factorization & Factor Strings 1.8 Everyday Math 5th Grade by Lawrence Cerniglia - September 5, 2012.

www.reference.com/math/factor-string-e4978ada1e77f270

A factor string is a whole number written as a multiplication problem with two or more factors other than one, ... In mathematical terms, what does "factor" mean?

www.matific.com/us/en-us/blog/2015/09/28/number-strings

Sep 28, 2015 ... A number string is a set of related math problems. ... Students start to see that when one factor increases by 1, the solution increases by “a set of ...

www.khanacademy.org/math/pre-algebra/pre-algebra-factors-multiples/pre-algebra-prime-factorization-prealg/v/prime-factorization

Have you ever heard of the factor tree? It's where you find what ...... We learned this in math class, and I am very confused about what you are supposed to do.

www.svmimac.org/images/2012CI.NumberStrings4.3-4.pdf

Jul 19, 2004 ... To make generalizations about mathematical relationships, .... In multiplication, many strings begin by doubling one factor while leaving the ...

www.mathsisfun.com/definitions/prime-factor.html

A factor that is a prime number. Any of the prime numbers that, when multiplied, give the original number. Example: The prime factors of 15 are 3 and 5 (3×5=15, ...