Question

Using prime factorization method find HCF and LCM? plz fast.....give me answer
1. 366 and 54
2. 26 and 91
3.396 and 1080

Answer 1

1.
$366=2\times3\times61$
$54=2\times3^3$

For $HCF$, pick the common prime powers with least exponent :
$HCF~=~2\times3~=~6$

For $LCM$, pick the prime powers with greatest exponent :
$LCM~=~2\times3^3\times61~=~3294$

Answer 2

3294........................................................