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LCM
GCF
LCM
Prime Factorization
Misc
100

The LCM of (2,3)

What is 6?

100

The GCF of 8 and 36.

36: 1,2,3,4,6,9,12,18,36

8: 1,2,4,8

GCF is 4

100
The LCM of (5,10)
What is 10?
100

What is the prime factorization of 16?

2X2X2X2

100

What is the prime factorization of 5?

5 is already a prime number, so it can not be reduced.

200
The LCM of (12, 8)
What is 24?
200

GCF of 10 and 50

10: 1,2,5,10

50: 1,2,5,10,25,50

GCF is 10

200
The LCM of (12,10)
What is 60?
200

What is the prime factorization of 50?

5X10

5X5X2

200

The LCM of (10 and 12).

10,20,30,40,50,60,70,80,90,100,110,120

12,24,36,48,60,72,84,96,108,120


60


300
The LCM of (11,12)
What is 132?
300

GCF 48 and 24

48: 1,2,3,4,6,8,12,16,24,48

24: 1,2,3,4,68,12,24

GCF is 12

300
The LCM of (3,5)
What is 15?
300

What is the prime factorization of 100?

10X10

5X2X5X2

300

True or False: 1 is a prime number

False.  1 can only be divided by itself.  A prime number has 2 factors.

400
The LCM of (2,3,4)
What is 12?
400

GCF of 2 and 4

2: 1,2

4: 1,2,4

GCF is 2

400
The LCM of (2,4,8)
What is 8?
400

What is the prime factorization of 96?

2X48

2X2X24

2X2X2X12

2X2X2X2X6

2X2X2X2X2X3

400

GCF of 18 and 20.

18: 1,2,9,18

20: 1,2,4,5,10,20

GCF is 2

500
The LCM of (2,11,12)
What is 132?
500

GCF of 128 and 96

128: 1,2,4,8,16,32,64,128

96: 1,2,3,4,6,8,12,16,24,32,48,96

GCF is 32

500
The LCM of (3,6,8)
What is 24?
500

What is the prime factorization of 12?

2X6

2X2X3

500

Is zero a prime number?

no, a prime number has 2 factors; 0 times any number is 0, so it can't be a prime number