Question

So I need some help with GCF (greatest common factor), anybody? Please please please help!!😞

Answer 1

take the union of thier prime factorizations

Answer 2

the GCF of 15 and 18

15 = 3 5
18 = 2 3 3
------------
GCF: 2 3 3 5

Answer 3

did i confuse that with LCM?

Answer 4

Like factor trees?

Answer 5

Umm no I don't think so

Answer 6

GCD, biggest factor that they have in common

so the intersection of the factors .... is what they have in common

Answer 7

15 = 3 5
18 = 2 3 3
------------
LCM: 2 3 3 5



15 = 3 5
18 = 2 3 3
------------
GCF: 3
since 3 is the only common factor

Answer 8

Okay so had 34, 51, and 68 the GCF came out 17
Is that right?

Answer 9

34 = 2 17
51 = 3 17
68 = 2 2 17
-------------
the only thing and therefore the biggest factor by default is 17

Answer 10

yessssss! ☺️

Answer 11

I have a question saying
If the number is the square of a prime number it has exactly 3divisors, give an example and explain
What on earth does that mean?