Question

prove theoram no. 1.3 of NCRT math of class 10th in easy way

Answer 1

this was from s chand this will help you

Answer 2

Answer:

Let p be a prime number. If p divides a2 , then p divides a , where a is a positive integer. Now, as given p divides a2 . Therefore, from the Fundamental Theorem of Arithmetic, it follows that p is one of the prime factors of a2 .