Question
Find the H.C.F of the numbers: $91, 112, 49.$
✓
Answer
Factors of $91$ are $1,7,13$ and $91.$
Factors of $112$ are $1,2,4,7,8,14,16,28,56$ and $112.$
Factors of $49$ are $1, 7$ and $49.$
$\therefore $ Common factors of $91, 112$ and $49$ are $1$ and $7$.
Highest of these common factors is $7.$
$\therefore H.C.F.$ of $91, 112$ and $49$ is $7.$
Factors of $112$ are $1,2,4,7,8,14,16,28,56$ and $112.$
Factors of $49$ are $1, 7$ and $49.$
$\therefore $ Common factors of $91, 112$ and $49$ are $1$ and $7$.
Highest of these common factors is $7.$
$\therefore H.C.F.$ of $91, 112$ and $49$ is $7.$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Express the following fractions as decimals: $\frac{111}{250}$
→ Complete one of the following magic squares by supplying the missing numbers:
Where will the hand of a clock stop if it starts at $2$ and makes $\frac{1}{2}$ of a revolution, clockwise$?$
→Express of the following number as the sum of twin prime:
36
36
The diameter of a circle is $14\ cm,$ find its radius.
→Write two five digit numbers whose sum is a five digit number more than 90,250.
Why are 1, 3, 6, 10, 15, 21, 28, 36, .... called triangular numbers?
A rectangular sheet of paper is of length $1.2\ m$ and width $21\ cm.$ Find the ratio of width of the paper to its length.
→If $\Delta$ is an operation on integers such that $a \Delta b=-a+b-(-2)$ for all integers $a, b$. Find the value of
$(-5) \Delta 6$
→$(-5) \Delta 6$
Find the common factors of $15$ and $25$
→