What is the greatest common factor of 15 and 51

3

Step-by-step explanation:

You can find the factors 15 and 51, and see what numbers they have in common.

51 = 1, 3, 17, 51

15 = 1, 3, 5, 15

If you look at it, the two numbers they have in common are 1 and 3. But the greatest out of the two is 3.

The greatest common factor (GCF) of 15 and 51 is 3

Hope this helps! :)

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

your question is incomplete, write all the numbers in the sequence that it tells you.  

step-by-step explanation: