Using the prime factor method, find the H.C.F of :

$24$ and $49$

Using the prime factor method, find the H.C.F of :

$\mathrm{40,} 60$ and $80$

Using the prime factor method, find the H.C.F of :

$48, 84$ and $88$

Using the prime factor method, find the H.C.F of :

$12, 16$ and $28$

Using the division method, find the H.C.F. of the following:

$16$ and $24$

Using the division method, find the H.C.F. of the following:

$18$ and $30$

Using the division method, find the H.C.F of:

$7,14$ and $24$

Using the division method, find the H.C.F of:

$70,80,120$ and $150$

Using the division method, find the H.C.F of:

$32,56$ and $46$