$15$ is one of the factors of $150$.

Find the HCF of $375 \text{and }825$ by prime factorisation method.

Find the HCF by prime factorisation method.

$\mathrm{60,} \mathrm{80,} 120$

Find the HCF by prime factorisation method.

$\mathrm{48,} \mathrm{72,} 100$

Find the HCF by prime factorisation method.

$36$ and $84$

Find the HCF by long division method.

$\mathrm{375,} 875$

Find the HCF by long division method.

$\mathrm{80,} \mathrm{120,} 360$