Prime Factorization
LCM
GCF
100

15

3 x 5

100

6 and 9

18

100

6 and 9

3


200

70

2 x 5 x 7

200

4 and 6

12

200

8 and 16

8

300

54

2 x 33

300

12 and 8

24

300

15 and 28

1

400

36

22 x 32

400

20 and 25

100

400

6 and 18

6

500

60

2x 3 x 5

500

4 and 15

60

500

35 and 60

5