381,560 views
41 votes
41 votes
Highest common factor of 15 30 and 45

User DonMax
by
2.5k points

2 Answers

18 votes
18 votes

Explanation:

I believe it is 15...all the numbers can be divided by 15, since 15 is the smallest number it is also the highest common factor only because 30 and 45 can be divided by 15

.......hope it helps!

User Patrick Ferreira
by
2.6k points
14 votes
14 votes

Answer:

15

Explanation:

Find the prime factors for each number as:

45 =3 × 3 × 5

30 = 2 × 3 × 5

15 = 3 × 5

Now identify the common factors and determine the GCF:

Therefore:

HCF = 3 × 5 = 15

User Sindhu
by
2.5k points
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