Question:
Complete the missing entries in the following factor tree.
Solution:
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 21and 42.
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