A factor is a number that goes into another number exactly with no decimals or remainders.
Example: 2 is a factor of 6
2 goes into 6 exactly 3 times
2 is not a factor of 5
Because 2 goes into 5 2.5 times
Find the factors of: 4,12,16,17,41,96
4- 1,2,4
12-1,2,3,4,6,8,12,24
41- 1, 41
96-1,2,3,4,6,8,12,16,24,32,48,96
Prime Numbers are numbers with only 2 factors. Those factors are 1 and itself.
Composite Numbers are numbers with more than 2 factors (at least 3)
Determine whether each number are Prime or Composite: 1,9,13,28,31,41,51
1= Neither 9= Composite 13= Prime 28= Composite 31= Prime 41= Prime 51= Composite
A Multiple is a opposite of a factor.
Example: 10 is a multiple of 2
10 is a multiple of 5
Lowest Common Multiple : LCM
Find the lowest common multiple of 3 and 4
3-3,6,9,12,15,18,24,29,30
4-4,8,12,16,20,24,28,32,36
The Lowest common multiple is 12.
Find LCM
4 and 12
4-4,8,12,16,20,24,28,32......
12-12,24,36.....
The Lowest common multiple is 12
2 and 5 and 12
2-2,4,6,8,10,14............30
5-5,10,15,20,25,30
15-15,30
The Lowest common multiple is 30
Homework
Find all the factors of 10,18,37
Determine which numbers are Prime or Composite
2,11,12,27
Find the LCM of
2 and 4
3 and 5
6 and 7
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GOOD JOB LARA!
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ReplyDeleteGOOD JOB LARA!! I liked how you used different colours. Like Bennette said, you misspelled some words. But overall you did a very good job!
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ReplyDeleteGood job Lara. I liked how you made it very neat and used different colours. Keep it up!
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ReplyDelete