64
three possible answers to this one 11 44 99
To be both, a cube and a square, the number would have to be a 6th power. 26 = 64 is too small 46 = 4096 is too large So the only possibility is 36 = 729
2
73 is the largest 2 digit number that is both prime and has prime numbers for both of its digits.
A three-digit number divisible by both 2 and 5 must end with a 0, as this is the only digit that satisfies both conditions. The smallest three-digit number is 100, and the largest is 999. Therefore, any three-digit number that ends in 0, such as 100, 110, or 990, is divisible by both 2 and 5.
three possible answers to this one 11 44 99
To be both, a cube and a square, the number would have to be a 6th power. 26 = 64 is too small 46 = 4096 is too large So the only possibility is 36 = 729
2
99,600 is the largest 5-digit number that meets both requirements.
73 is the largest 2 digit number that is both prime and has prime numbers for both of its digits.
The least three-digit number that is divisible by both 5 and 9 is 135.
There is no 1-digit number that is equal to 14 and 28.
64
73 is the largest two-digit number that is prime and has prime numbers for both of its digits.
26.
There is a lot of answer for this, but I tell you one. The answer is 6541.
9990 is one such number.