13-02-2015
Mathematics

contestada

The only two-digit prime with each digit the same

Respuesta :

apologiabiology apologiabiology

13-02-2015

there is only one because any 2 digit number with the same digits, would be a multiple of 11
because the 2 digit numbers that have the same digits are all multiplues of 11
the numbers are 11,22,33,44,55,66,77,88,99
and 11 is prime so the answer is 11

Answer Link

Otras preguntas

1/2x+1/2x=x+1 Can someone show me how to do this???

Identify 1 similarity and 1 difference between folding and warping.

3/7 of what number is 9? How am I suppose to figure this out?

For the given value of a , find - a and |a| 1. a = 10.2 2. a = - 14 a = 1 over 2 Anyone!? ;o help me !?

The sum of two integers with different signs is 8. Give two possible integers that fit this description

Which religion in India combines the Muslim belief in one God with the Hindu belief in reincarnation?

I need help. I don't know how to solve the problem at all.

You have 10 apples in a basket. 10 children come to you and each one of them ask for an apple. You want to give all the apples to each one of them, but still ke

2(n-3)=4n+1 ugh why does math have to be so confusing??

solve for x 6(x+5)-3(x-2)=12x+18