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What are the multiples of three but are square numbers?
Any even exponent of 3 is a square number.
What numbers with exactly 3 factors are?
A number has exactly three factors if and only if it is the square of a prime number.
What are the square numbers that are factors of 18?
The factors of 18 are 1, 2, 3, 6, 9, and 18. The only square number of those numbers is 9.
What are all the square numbers up to 100000?
there are an infinite amount of square numbers 4,9,16,25,36,49,64,81,100... A square number is a number multiplied by its self. For example 6 times 6 is 36 so 36 is a square number To Help just add the odd 2 times tables to get each square number. For example: 1=1 1+3=4 1+3+5= 9 1+3+5+7-= 16 1+3+5+7+9= 15 11 12 13 14 15 16 17 18 19 20 carrying on from 100... 121,144,169,196,225, 256, 289, 324, 361, 400!
What is the smallest negative perfect square that is divisible by the four smallest prime numbers?
Perfect squares are positive. A smallest negative number doesn't exist. The four smallest prime numbers are 2, 3, 5 and 7. The smallest perfect square would have to be 2^2 x 3^2 x 5^2 x 7^2 or 44,100
