Question

8. What is the HCF of 15 and 51 1 point
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Answer 1

Answer:

15 - 1,3,5,15 and 511 - 511 and 1 because it is a prime no.

Answer 2

Answer:

Step-by-step explanation:

he greatest common factor of 15 and 51 can be computed by using the least common multiple aka lcm of 15 and 51. This is the easiest approach:

gcf (15,51) = \frac{15 \times 51}{lcm(15,51)} = \frac{765}{255}  

lcm(15,51)

15×51

​  

=  

255

765

​  

 = 3

Alternatively, the gcf of 15 and 51 can be found using the prime factorization of 15 and 51:

The prime factorization of 15 is: 3 x 5

The prime factorization of 51 is: 3 x 17

The prime factors and multiplicities 15 and 51 have in common are: 3

3 is the gcf of 15 and 51