- #1
randommacuser
- 24
- 0
Hey all, I've got a few number theory exercises that are troubling me.
1. Prove a positive integer s is a square if and only if each of the exponents in its prime factorization is even.
2. Let c,d be positive, relatively prime integers. Prove that if cd is a square, c and d are squares.
3. Show that for four integers a,b,c,d, if a+b*sqrt(10)=c+d*sqrt(10), then a=c and b=d.
Hopefully someone can give me a start here. Thanks!
1. Prove a positive integer s is a square if and only if each of the exponents in its prime factorization is even.
2. Let c,d be positive, relatively prime integers. Prove that if cd is a square, c and d are squares.
3. Show that for four integers a,b,c,d, if a+b*sqrt(10)=c+d*sqrt(10), then a=c and b=d.
Hopefully someone can give me a start here. Thanks!