R K Bansal Solutions for Chapter: H.C.F. and L.C.M., Exercise 1: EXERCISE

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 $46$

Show that $45$ and $56$ are co-prime numbers.

Find the pairs of co-prime numbers.

$15,16,21, \text{and} 28$

Find the greatest number that can divide $93,111$ and $129$, with remainder $3$ in each case.

(Since,$93-3=90, 111-3=108$ and $129-3=126$)