Answer:
5
Explanation:
To find the greatest common factor of 10, 30, and 45.
The first step is to express the numbers 10, 30, and 45. as a product of its prime factors.
[tex]\begin{gathered} 10=2\times5 \\ 30=2\times3\times5 \\ 45=3\times3\times5 \end{gathered}[/tex]We observe that only 5 is common in all three numbers.
Therefore:
The greastest common factor of 10,30,and 45 = 5
