When Is Prime Factorization Useful?

Prime factorisation is a very useful tool when working with whole numbers, and will be used in mental arithmetic, in fractions, for finding square roots, and in calculating the HCF and LCM.

How is prime factorization needed in our everyday living?

There can be various important uses of prime numbers. Cicadas time their life cycles by prime numbers, modern screens use these to define color intensities of pixels, manufacturers use to get rid of harmonics in their products.

How do we use prime and composite numbers in real life?

Encryption codes can be created by multiplying two prime numbers together. The composite number is recognized by the computer, but only the bank knows the two original prime numbers. The composite numbers used as codes are usually extremely large.