What is Prime Factorization used for?

Answer 1

It allows you to find all the factors of a number. Prime factorisation is necessary for calculating the greatest common factor and least common multiple of sets of numbers. That information is essential for working with rational numbers.

Answer 2

It can be used to simplify fractions. This can often make the numbers in a calculation smaller and so easier to deal with. Very large factors of primes are used for encrypting data for security.

Answer 3

Finding least common multiple, greatest common factor; simplifying square roots.

Answer 4

Really isn't any practical uses. It just gets you familiar with numbers and prime numbers and it gets your brain thinking.

Answer 5

Math, chemistry, and physics.