Answer:
Step-by-step explanation:
455: 5 * 91
455: 5 * 7 * 13
the 5 is easy to find. If some number ends in 5 it is divisible by 5.
91 is not so easy.
91 is not divisible by 2. 91 is an odd number.
It is not divisible by 3. 9 + 1 = 10 which is not divisible by 3
We have already covered 5. so we start a new series of numbers
91 / 7 = 13 and we are done.
