wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

'a' and 'b' are two positive integers such that the least prime factor of 'a' is 3 and the least prime factor of 'b' is 5.Then find the least prime factor of (a+b).

Open in App
Solution

Least prime factor being 3 or 5 means that 2 is not a factor. So the numbers are both odd.

Odd + odd = even for sure. So for a+b we have 2 as a prime factor.


Since 2 is the smallest prime, answer is 2.

Read more on Brainly.in - https://brainly.in/question/1196088#readmore

flag
Suggest Corrections
thumbs-up
10
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
The Fundamental Theorem of Arithmetic
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon