In a three-digit number, the hundreds digit is greater than 5, the tens digit is greater than 4 but less than 8, and the units digit is the smallest prime number. How many three-digit numbers satisfy all of these conditions?

tlin0611  Dec 25, 2017

1+0 Answers


The hundreds column can be  6,7,8,or 9.   That is 4 possibilies

the tens column can be 5,6,or 7  that is 3 possibilities.

The unit column has to be 2, only one possibility


so there are   4*3*1 =        12 possible numbers

Melody  Dec 25, 2017

19 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details