Question
Complete the missing entries in the following factor tree.
✓
Answer
We need to fill the values for $a$ and $b$ in the following factor tree:
It is clear from the factor tree above that
$b = 3 \times 7$
$b = 21$
Also,
$a = 2 \times b$
$a = 2 \times 21$
$a = 42$
Thus, the missing entries are $21$ and $42$.
It is clear from the factor tree above that
$b = 3 \times 7$
$b = 21$
Also,
$a = 2 \times b$
$a = 2 \times 21$
$a = 42$
Thus, the missing entries are $21$ and $42$.
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
Which term of the A.P $21, 18, 15, . . .$ is $– 81?$ Also, is any term $0?$ Give reason for your answer.
→Are the given numbers form an $AP?$ If they form an $AP,$ write the next two terms: $1, 1, 1, 2, 2, 2, 3, 3, 3, ...$
→Determine the $AP$ whose $3\ rd$ term is $5$ and the $7\ th$ term is $9$.
→Are the given numbers form an AP? If they form an AP, write the next two terms: $ -2, 2, -2, 2, -2, ...$
→Suppose the bulbs contain $4$ defective ones. One bulb is drawn at random from the lot. What is the probability that this bulb is defective?
→If $(1, 2), (4, y), (x, 6)$ and $(3, 5)$ are the vertices of a parallelogram taken in order, find $x$ and $y$.
→Find the simplest form of:
$\frac{368}{496}$
→$\frac{368}{496}$
Evaluate the following:
$\cos48^\circ-\sin42^\circ$
→$\cos48^\circ-\sin42^\circ$
Are the given numbers form an $AP$? If they form an $AP$, write the next two terms: $1, -1, -3, -5, ...$
→Define $HCF$ of two positive integers and find the $HCF$ of the following pairs of numbers:
$475$ and $495$
→$475$ and $495$