If it's to be a multiple of 9 the its digits must sum to a multiple of 9. Squares under 225 are 196,169,144,121,100... 144 ie 12 squared (and 9 x 16) would seem to be the figure you're looking for.
99 (= 11 x 9) is the largest multiple of 11 less than 100.
999milliom
It is 99
It is 64 which is also a square number
Square numbers are numbers that result from multiplying a number by itself, such as 1x1=1, 2x2=4, 3x3=9, and so on. To find square numbers less than 70, we need to find the largest perfect square that is less than 70, which is 64 (8x8=64). Therefore, the square numbers less than 70 are 1, 4, 9, 16, 25, 36, and 49.
The largest perfect square less than or equal to 160 is 144, which is (12^2). The next perfect square, (13^2), equals 169, which exceeds 160. Thus, 144 is the largest perfect square within that range.
√1476 ≈ 38.419, so the largest perfect square less than 1476 would have to be 382, or 1444.
312 = 961
It is: 784 because 28*28 = 784
To find the greatest square that is a fraction of 117, we first need to consider the perfect squares less than or equal to 117. The largest perfect square less than 117 is (10^2 = 100). Therefore, the greatest square that is a fraction of 117 is 100.
96.The largest multiple of 8 that is less than 100 is 96, 8*12.
99 (= 11 x 9) is the largest multiple of 11 less than 100.
To be a perfect square, all the primes in a number's prime factorisation must have an even power To be a perfect cube, all the primes in a number's prime factorisation must a power that is a multiple of 3 → To be a perfect square, all the primes in a number's prime factorisation must a power that is a multiple of 3 and a multiple of 2, ie the power must be a multiple of 6 The smallest prime is 2 2⁶ = 64 = (2³)² = 8² = (2²)³ = 4³ 2¹² = 4096 (too large) 3⁶ = 729 (too large) There is also 1 = 1² = 1³ Thus the whole numbers less than 100 which are both perfect squares and perfect cubes are 1 and 64.
3 is prime, 1 less than the perfect square of 4 (2x2)
5040 is not a perfect square. The greatest perfect square less than 5040 is 4900.
81 is the largest square of a whole number...
It is 25.