To factorise a number, use the factorization formula. Factorization is the process of converting one thing into the product of another thing, or factors, that when multiplied together yield the original number.
Definition
Factorization is a mathematical term that refers to a process of dividing down a large integer into smaller numbers that, when multiplied together, return the original number. These figures are divided into factors and divisors. Factorization Formula; N = Xa× Yb × Zc
Where,
N stands for a number,
X, Z, and Y are factors of number N
a, c, and b are exponents of factors.
Factorization Formula List
There is a list of formulas which help to solve algebraic equations which are:
(a + b)2 = a2 + 2ab + b2
(a − b)2 = a2− 2ab + b2
(a + b)3=a3 + b3 + 3ab (a + b)
(a – b)3 = a3 – b3 – 3ab (a – b)
(a + b)4 = a4 + 4a3b + 6a2b2 + 4ab3 + b4
(a − b)4 = a4 − 4a3b + 6a2b2 − 4ab3 + b4
(a + b + c)2 = a2 + b2 +c2 + 2ab + 2ac + 2bc
a2 – b2= (a + b) (a – b)
a2 + b2 = (a + b)2 – 2ab
a3 – b3 = (a – b) (a2 + ab + b2)
a3 + b3 = (a + b) (a2 – ab + b2)
Examples
Example 1
Factorize a2-625
a2-625 can be written as
a2-252 which is identical to a2-b2
a2-b2=(a+b)(a-b)
Hence, (a+25)(a-25) is the factored form of a2-625
Example 2
What is the prime factorization of 40?
To find the prime factorization of 40 let’s break 40 = 2*2*2*5
Therefore, 40 = 23*5 (Answer)