Hobler808
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# I am a a four dight number I am less than 4900 but more than 3600 I am a square number I am a multiple of 15 and 5 what is my number

I feel like this is a trick question, because to be a square number, the square root of the value would have to be a positive integers, and there isn't a single positive integer in that range that would work. (see below) Lower bound: $\sqrt{3600}$ = 60 Upper bound: $\sqrt{4900}$ = 70 Evaluating all possible integers: 61^2 =  3721 62^2 = 3844 63^2 = 3969 64^2 = 4096 65^2 = 4225 66^2 = 4356 67^2 = 4489 68^2 = 4624 69^2 = 4761 To be divisible by 5 & 15, the number in the ones place has to be either a 5 or a 0, and there is only one value: 65^2 = 4225, but 4225/15 = 281.67 which is not a whole number.  Thus, I reason not divisible by 15. My answer is 4125 because its the only number within the given range that happens to be square on a qwerty keyboard (see below) - don't know if that is correct 7 8 9 4 5 6 1 2 3