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Mathematics 9 Online
OpenStudy (bonnieisflash1.0):

The GCF of 15 and 27 is _____.

OpenStudy (bonnieisflash1.0):

@crazylizard102

OpenStudy (bonnieisflash1.0):

@daddysbabygirl

OpenStudy (bonnieisflash1.0):

can someone help me

OpenStudy (bonnieisflash1.0):

i think it's 9

OpenStudy (daddysbabygirl):

explain why you think it is 9

OpenStudy (bonnieisflash1.0):

because i was going with 18 but 15 is not higher to reach 18 so i went with 9 because it is the most and the last one to match up with 27

OpenStudy (daddysbabygirl):

( times what give you 15?

OpenStudy (daddysbabygirl):

9^

OpenStudy (daddysbabygirl):

no number does

OpenStudy (daddysbabygirl):

but 3 times 5 is 15 and 3 times 9 is 27

OpenStudy (daddysbabygirl):

so the greatest common factor is 3

OpenStudy (daddysbabygirl):

do you understand how I got that?

OpenStudy (bonnieisflash1.0):

oh

OpenStudy (bonnieisflash1.0):

but i thought you have to count up until you reach to the number and then circle the most one

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