Boston Numbers Doubt

#1

Sir how are 22, 58, 85 and 121 boston numbers ? Could you please explain.
In the problem description these numbers are given as examples of Boston Number but I couldn’t understand how.

#2

hey @utkarsh_sarin
for example you have 85 as a number its prime factors will be 5 and 17
so sum of digits(sod) of 85 = 8 + 5 = 13
And sod of its prime factors will be 5 + (1 + 7) = 13
They are equal so it is a boston number
So agar 11 prime factor hai to 1 + 1 hoga for example 22
2 an 11
sod of primes = 2 + 1 + 1 = 4
and sod(22) = 2 + 2 = 4
for example 121 its prime factors will be 11 and 11
so sum of digits(sod) of 121 = 1 + 2+1 = 4
And sod of its prime factors will be (1+1)+(1+1) = 4