Question

HCF of $8,9,25$ is what?

Answer 1

Prime factorization:

Using the prime factorization

$$\begin{gathered} 8=2\times 2\times 2 \\ 9=3\times 3 \\ 25=5\times 5 \end{gathered}$$

Since no prime factors are common in the numbers so, the H.C.F. is $1$.

Hence, the H.C.F. of the numbers $8,9,25$ is $1$.