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July 30, 2014

July 30, 2014

Posted by **Tomas** on Sunday, October 6, 2013 at 5:46pm.

2x2x5x7x7

2x5x5x7x7

a. 2x5

b. 2x5x7

c. 2x5x7x7

d. 2x2x5x5x7x7

e. 2x2x2x5x5x5x7x7x7x7

2. What is the least common multiple of:

3x3x5x5x5x7

2x3x5x5x7x7

a. 2

b. 5x5x7

c. 3x3x5x5x5x7

d. 2x3x3x5x5x5x7x7

e. 2x3x3x3x5x5x5x5x5x7x7x7

Please answer and explain

What is different between greatest common factor and least common multiple

- math -
**Steve**, Sunday, October 6, 2013 at 6:25pm#1

GCF must divide both numbers. So,

2x5x7x7 (c)

#2

LCM must be a multiple of both numbers. So,

2x3x3x5x5x5x7x7 (d)

(e) is also a multiple, but not the LEAST multiple

- math -
**Tomas**, Sunday, October 6, 2013 at 6:54pm#1

how to divide both mumbers

- math -
**Steve**, Sunday, October 6, 2013 at 7:29pm2x2x5x7x7 = 2x5x7x7 x 2

2x5x5x7x7 = 2x5x7x7 x 5

There's no number which divides both 5 and 7, so we've reached the greatest factor of both values.

- math -
**Tomas**, Sunday, October 6, 2013 at 7:42pmI understand

so, #2

how to multiple of both numbers

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