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Which of the number is not a perfect square 4 144 9 2?

Updated: 8/21/2019
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8y ago

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It is: 2

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Q: Which of the number is not a perfect square 4 144 9 2?
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Is 10 a perfect square?

no, 10 is not a perfect square. in order for a number to be a perfect square, you have to see if the numbers that are multiplied to get it are the same. for example: 2x2=4; 4 is a perfect square. 12x12=144; 144 is also a perfect square 5x2=10 or 10x1=10. 10 isn't a perfect square because 5 and 2, and 10 and 1, are different numbers.


Is every rational number a perfect square?

No. Though every perfect square is a rational number, not every rational number is a perfect square. Example: 2 is a rational number but sqrt(2) is not rational, so 2 is not a perfect square.


What number should be added to a number to get a perfect square?

Because numbers are infinite, there is an infinite number of answers. e.g. What number should be added to 2 to make a perfect square? 2+2=4 (a perfect square) 2+7=9 (a perfect square) 2+14=16 (a perfect square) 2+23=25 (a perfect square) etc... Did you have a specific number in mind.


Is 2 a squre number?

2 is a square number but, because it is not a square of an integer, it is not a perfect square.


Is the number 2 a perfect square?

No.


Is 2 a perfect square?

To be a perfect square, a number must have a square root that evaluates to an integer. The square root of 2 is approximately equal to 1.414, thus it is not a perfect square.


How do you square a number in word?

Times a number by itself to square a number. for example 12 x 12 = 144.To show that the answer (144) is squared in Answers, type 144, click on Superscript in the bar above, type the number 2 and a Superscript 2 is placed thus: 1442


How do you know that 144 has an even or odd number of factors without finding each one?

Express the number in its prime factorisation in power format. The number of factors of the number is the product of the powers each increased by 1. 144 = 2^4 × 2^2 → number of factors is (4+1) × (2+1) = 3×5 = 15; so 144 has an odd number of factors. As an even number times an even or odd number is even, the only way the product above can be odd is if every power increased by 1 is odd, that is only if every prime is to an even power. By using the laws of indices, this means the power of every prime can be divided by 2 and the whole prime factorisation so created raised to the power 2 which is squared, eg for 144: 2^4 × 3^2 = (2^2 ×3^1)². Thus for a number to have an odd number of factors it must be a perfect square. 144 is a perfect square (144 = 12²) therefore it has an odd number of factors. This result that only perfect squares have an odd number of factors can also be seen by looking at the factor pairs of a number: the factors of a number can be paired up so that when the numbers of a pair are multiplied together they get the original number. If there is an odd number of factors then after the pairing there will be one factor left unpaired, but as it is a factor of the original number it must have a pair. Therefore the only pair possible is with itself, ie the number is this factor squared and the number is a perfect square. for example: for 144, the factors are: {1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144} which can be paired as: {1, 144}, {2, 72}, {3, 48}, {4, 36}, {6, 24}, {8, 18}, {9, 16} leaving the factor 12 unpaired, so it must pair with itself as {12, 12} which means 144 = 12² and is a perfect square (with an odd number of factors).


How do you get perfect squares?

multiply the same number by itself, for example: 2*2=4, 4 is a perfect square. 8*8=64, 64 is a perfect square. the first few perfect squares are 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225,....


Why composite number which has perfect square root doesn't have factor less and greater then square root?

Actually it can, if it's not the square of a prime number. For example, 144 is the square of 12; but you can also factor it as 6 x 24.


How do you find the square root of answer?

The square root of an answer is a number times itself to get that number so the square root of 4 is 2 the square root of 144 is 12 because 12 times itself gives us the answer of 144


What number has 2 in it and is a odd number and is a perfect square?

12