Sep 10, 2015 · I have to compute the Legendre symbol $ (\frac {5} {p})$. If $p=2$, it is immediate to see that we have $5 \equiv 1 (\mod {2})$. let $p$ an odd prime. By quadratic reciprocity we …

In number theory, the Legendre symbol is a multiplicative function with values 1, −1, 0 that is a quadratic character modulo of an odd prime number p: its value at a (nonzero) quadratic …

Mar 9, 2019 · The five triangles are numbered from 1 to 5. The spinner is spun until it lands on one of the five edges of the pentagon. What is the probability that the number it lands on is …

1） p是5的倍数，p为奇数，所以p只要个位是5就可以满足条件。 那么p除以5余数为零，选A。 2） p+1是5的倍数，p+1的个位是0或5，则p的个位是9或4，因为p是奇数，所以p的个位是9， …

Find the following probabilities. P (roll a four) P (roll a four) = number of ways to roll a four total number of ways to roll a die = 1 6 The probability of rolling a four is 1 6. P (roll an odd number) …

The probability P (leapyear) of being born in a leap year is 0.25. If you randomly select a three digit positive number, what is the probability it is an odd number?

Que sont les objectifs de développement durable (ODD) ? Et pourquoi sont-ils importants ? Le Programme de développement durable à l'horizon 2030 constitue un modèle commun de paix …

Dec 9, 2009 · The Legendre symbol (5/p) =1 means that 5 is a quadratic residue mod p. The number 4^2 = 16 = 5 (11) shows that 5 is a quadratic residue mod 11, however 11 = 1 (5), not -1.

May 7, 2015 · Such that if I want (−1 p) = 1 (− 1 p) = 1, then I must have p ≡ 1 p ≡ 1 mod 4 4. Since 5 5 is congruent to 1 1 mod 4 4, I can say (5 p) =(p 5) (5 p) = (p 5).