Prime- having only 2 factors
(The factors of 3 are 1,&3, the factors of 23 are 1&23)
Composite- having 3 or more factors.
(The factors of 9 are 1,3,&9)
(The factors of 15 are 1,3,5 & 15)
page 28- Thursday's HW with hints at the bottom
Notes from Friday
Wednesday Supplemental Math- Divisibility Rules
Short cut of gcf below!
1. find the prime factors
2. multiply common prime factors from both numbers.
