As you now we have just started a new year, the year 2015. I have a very simple question for you, write everything you now about this number (is it even or odd, prime or composite, if composite which are its factors and which are its divisors, do some calculations with it, ...).

**Use comments to answer, writing your name.**

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Time Goal: january 16th

2015 is an odd prime number I am rafael de la rubia :))

ReplyDeleteIt is an odd number .for just five

ReplyDeleteThe 2015 is a composite number

1-5-13-31-155

YOLANDA GARCIA ZURITA

it is odd and composite. Its divisors are: 1, 5, 13 ,31, 65, 155, 403

ReplyDeleteIrene Trillo

El número 2015 no es un número primo.

ReplyDeleteFactorización de 2015 = 5 x 13 x 31

Los divisores del número 2015 son 1 ,5 ,13 ,31 ,65 ,155 ,403 , 2015.

La raíz cuadrada del número 2015 es 44,8.

Cristian David Cabrera Acevedo.

2015 is a number odd. Is a composite number. His divisors are: 1, 5,13, 155, 403 and 2015.

ReplyDeleteVera Lucena

Congratulations to the participants. This activitiy is in English Cristian, but you did it well:

ReplyDeleteIt's an odd number (not divisible by two).

It's a composite number whose prime factors are 5, 13 and 31.

The divisors are: 1, 5, 13, 31, 65, 155, 403 and 2015.