Factors and Prime Factorization
FACTORS
A factor is a number that divides another number leaving no remainder.
Example: 12
- 1 × 12 = 12
- 2 × 6 = 12
- 3 × 4 = 12
Factors of 12: 1, 2, 3, 4, 6, 12
Factor Rainbow
PRIME FACTORIZATION
Composite numbers can be expressed as a product of prime factors. Factor trees make this easy.
Example: Factorize 48
48
/
6 8
/ /
2 3 2 4
/
2 2
Prime factorization: 48 = 2⁴ × 3
Watch the example here
Exercise 1.6
Click View Answers to display factors and prime factorization.
| Number | Factors | Prime Factorization | View Answers |
|---|---|---|---|
| 45 | — | — | |
| 72 | — | — | |
| 108 | — | — | |
| 121 | — | — | |
| 456 | — | — | |
| 2000 | — | — | |
| 1915 | — | — | |
| 350 | — | — | |
| 756 | — | — |