If n and p are integers greater than 1 and if p is a factor of both n+3 and n+10, what is the value of p? (a)3 (b)7 (c)10 (d) 13 (e)30 the answer is b but i don't know why

Follow Math Help Forum on Facebook and Google+

Originally Posted by juliak If n and p are integers greater than 1 and if p is a factor of both n+3 and n+10, what is the value of p? (a)3 (b)7 (c)10 (d) 13 (e)30 the answer is b but i don't know why An easy-to-prove little lemma: if p divides a and p divides b then p divides a - b Tonio

View Tag Cloud