Slee92 Slee92
  • 23-02-2020
  • Mathematics
contestada

Why is p2+1 is always an even number

Respuesta :

Аноним Аноним
  • 23-02-2020

Answer:

Most prime numbers are odd. If p is odd, p2 is also odd, and then p2 + 1 is even. Because p > 1, p2 + 1 > 2, and an even number greater than 2 cannot be prime. So p has to be even, then p = 2 (and p2 + 1 = 5 is also prime).

Step-by-step explanation:

Hope this help

Have a nice day!!

Answer Link

Otras preguntas

Danielle has 8 coins worth $0.36 if the coins are all nickels and pennies how many nickels and pennies does she have?
can someone help me with these problems ? please and thanks
how do i calculate the surface area of a sphere?
Essay question: What were THREE important innovations of the late nineteenth and early twentieth centuries, and how did each innovation change life in the Unite
round the underline number 567.63 and 7 is underlined
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!
Red wolf question Someone help please 20 points (Only answer. if not don’t comment) ASAP 1) how did crooked ear escape and where did he escape to? 2) how did
Much of the mineral and oil wealth of the northern territories has not been developed because ?
Ella takes 1 3/5 hours to complete a painting. Holly takes 3/4 of the time that Ella takes. How long will Holly take to complete 5 paintings?
Graph the following linear equation. y=-5/2x+10