Blue Check Mark next to Contact phone number?

[mhinc]

I am sure this will be a quick answer for someone. And I did do a search thinking it would be easy to find out. But I can't find anything.
When I go into my contacts, my GF's mobile number has a Blue Check Mark next to the phone number itself.
I have other contacts with multiple contact numbers and none of them I have come across thus far have the check mark...
Can someone tell me what this means?

Thanks!

 

[leprechaunshawn]

I think it's from Google Talk.

 

[mhinc]

I think it's from Google Talk.

I actually tapped and held over the phone number and it appears the blue check mark means it's been set as the default Number
If anyone else was curious!

 

[Kelly Kearns]

Was coming in here to tell you that you had a default number set lol

 

[mhinc]

Was coming in here to tell you that you had a default number set lol

Ha ha Thanks Kelly! Your advice helped me in another thread regarding Google Now, so rest assured, I am thankful