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

7 Online Users


New Privacy Policy (May 2018)

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. Please click on "Accept cookies" if you agree to the setting of cookies. Cookies that do not require consent remain unaffected by this, see cookie policy and privacy policy.