1. What is the greatest common factor of:

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

5 answers

#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
#1
how to divide both mumbers
2x2x5x7x7 = 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.
I understand
so, #2
how to multiple of both numbers
Thankyou so much mmrs sue
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