All about factorization

We started working on multiples, factors, prime numbers and factorization.

Prime Numbers : a number that has only two factors, 1 and itself.  (See our ISN)

Composite Numbers are numbers that have more than two factors.   These numbers together create a beautiful rainbow.

0 and 1 are neither prime nor composite

(See our ISN)

MULTIPLES

If a number is a multiple of another number, it means that it can be made out of adding groups of the other number together.

Examples

12 is a multiple of 4 because 4 + 4 + 4 = 12 (or 4 x 3 = 12)

27 is a multiple of 9 because 9 + 9 + 9 = 27 (or 9 x 3 = 27)

17 is not a multiple of 4 because it cannot be made by adding groups of 4 together

FACTORS

A number is a factor of another number if it divides into it with no remainder.

In other words any number will always be divisible by all of its factors.

It is the opposite of a multiple.

Examples

12 is a multiple of 4 so 4 is a factor of 12 (12 is also divisible by 4)

27 is a multiple of 9 so 9 is a factor of 27.

7 x 4 = 28 so 7 and 4 are both factors of 28 (and 28 is also divisible by both 7 and 4)

Factor Trees

Watch this cool video on prime factorization :

Have a good night:)

Miss Lopez