Five two-digit numbers are multiples of the products of their digits. Four of these numbers are 11, 12, 24, and 36. Find the fifth number.

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- January 4th 2012, 07:06 PMstevecowallFinding two digit number
Five two-digit numbers are multiples of the products of their digits. Four of these numbers are 11, 12, 24, and 36. Find the fifth number.

I was looking at this and confuse about this question.

Thank you for helping me, - January 4th 2012, 07:35 PMpickslidesRe: Finding two digit number
Ok, we have

11: 1x1=1, 11 is a multiple of 1

12: 1x2=2, 12 is a multiple of 2

24: 2x4=8, 24 is a multiple of 8

36: 3x6=18, 36 is a multiple of 18

Does this make sense?

If so you can now find your 5th number, there's not that many to choose from i.e. between 10 & 99 - January 4th 2012, 07:40 PMstevecowallRe: Finding two digit number
- January 4th 2012, 07:44 PMpickslidesRe: Finding two digit number
What have you tried? You know what a multiple is yeh? (Nod)

Start at 10, does that work?

Skip 11 and 12, we know the result there, then keep going, 13, 14, ....

Won't take you long, you should find it before you get to 20. - January 4th 2012, 07:46 PMpickslidesRe: Finding two digit number