The given number, 240, has a ones digit of 0 which means it
is divisible by 10.
To get the prime factors of 240, let us do the branching of
the prime factor tree.
240
/ \
2 120
/ \
2 60
/ \
2 30
/ \
2 15
/ \
3 5
Therefore, 240 has the prime factors of 2 x 2 x 2 x 2 x 3 x
5 or 2^4 x3 x5 = 240
.