Posted by **Jasmine** on Tuesday, December 5, 2006 at 3:08am.

Let me know if this is correct :

(1)Finding the lcm using which ever method for:5,15 , and 20

8:2x2x2x3x5x5

15:2x2x2x3x5x5

20:2x2x2x3x5x5

---------------

LCM:2x2x2x3x5x5

After simplification LCM:120

(2)Find the GCF for each of the following numbers: 36, 64, 180

Prime Factors

36=2x2x3x3x1

64=2x2x2x2x2x2x1

180=2x2x3x3x5x1

Common Prime Factors

36= 2x2x2

64=2x2x2

180=2x2x2

GCF=4

I am not certain what your logic is, but the answers are correct.

## Answer This Question

## Related Questions

- math,algebra,bobpursley - Let me know if this is correct now: (1)Finding the lcm...
- math, algebra - Can someone check this for me : Find the gcf for each of the ...
- Math - Find the LCM and GCF of the following numbers: 1) 2016 and 756 2) 10140 ...
- Math - Find the LCM of 11(s-3) and 33(s-3). LCM of 11 is 11*1 LCM of 33 is 3*11 ...
- Algebra - I am stumped by these two LCM questions for some reason. Find The LCM ...
- Math - Can someone check my answers for me pls? True or False LCM of 10 and 18 ...
- math - is this right Find the LCM for the given numbers by an appropriate method...
- MATH - Given the GCF or LCM, what else do you know about each pair of numbers? a...
- algebra - 1.FIND THE LCM OF 10X^7 AND 50X^4 2.FIND THE LCM OF x^2 -36 AND x^2 + ...
- Math - I am 55, my motherlaw is 70, my friend is 40. How do I figure out the LCM...

More Related Questions