472 ALGEBRA De MYSTiF ieD
DeMYSTiFieD / Algebra DeMYSTiFieD / Gibilisco / 000-0 / Appendix
Factor 1309.
The prime factors to check are 7, 11, 13, 17, 19, 23, 29, 31.
1309 ÷ 7 = 187
187 ÷ 11 = 17
1309 = 7 · 11 · 17
Factor 482.
The prime factors to check are 2, 3, 7, 11, 13, 17, 19.
482 ÷ 2 = 241
482 = 2 · 241
PRACTICE
Factor each number into its prime factorization.
- 308
- 136
- 390
- 196
- 667
- 609
- 2679
- 1595
- 1287
- 540
SOLUTIONS
- 308 = 2 · 2 · 7 · 11
- 136 = 2 · 2 · 2 · 17
- 390 = 2 · 3 · 5 · 13
- 196 = 2 · 2 · 7 · 7
- 667 = 23 · 29
- 609 = 3 · 7 · 29
- 2679 = 3 · 19 · 47
PRACTICE
Factor each number into its prime factorization.