Smallest Prime Factors
The smallest prime factor of a
positive integer
is 11.
The smallest prime factor of another positive integer
is 31.
What is the smallest prime factor of
?
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
Relevant wiki: Even and Odd Numbers
W's least prime factor is 11 means all its rest prime divisors are greater than 11(and 2 obviously) so all are odd.Same for K.
ODD x ODD=ODD
and
ODD + ODD=EVEN
So by this,K and W are odds ,and their sum(K+W) is even,so divisible by 2,i.e.,its least prime divisor.