The first squared number that is a multiple of 10 is three digits.
If its squared rott is 50, the number must be 2500, which is not a 2-digit number.
25 & 36.
450 or 900
N squared would be used to find the square root of a number or numbers. In order to find the number of three digit numbers such that the sum of the square results of any two digits are equal to the third digit the use of the formula (HOE)squared=Hsquared*10000+2HE*100+Esquared is needed.
987654321 is the highest nine-digit number with no repeated digits.
The largest ten digit number with no repeated digits is '9876543210'.
Since there are only five different digits, a 6-digit number can only be generated if a digit can be repeated. If digits can be repeated, the smallest 6-digit number is 111111.
The only number that ONLY has two and five as factors is 10, which has two digits, so there are no numbers that are three digits long and ONLY have two and five for factors. However, if you are asking what the largest three digit number that has two and five for factors, it would be the largest three digit number with ten as a factor, as ten the the LCM of two and five, and that would be 390.
102 is the smallest three digit number with different digits.
The greatest 4-digit number with no repeated digits is... 9876
It can have up to 5 digits.