The Unit Digit

Number Theory Level 2

True or False?

Every prime number always contains a unit digit which is either of these numbers: 1, 2, 3, 7 or 9 only.

False True

Sandeep Bhardwaj by Sandeep Bhardwaj , 28, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

2 solutions

Toshit Jain
Aug 15, 2016

5 is also a prime number!

3 Helpful 0 Interesting 0 Brilliant 0 Confused
Munem Shahriar
Jul 2, 2017

1, 2, 3, 7 or 9

5 is missing there.

1 Helpful 0 Interesting 0 Brilliant 0 Confused

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...