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What number is the opposite of 231?
-231. To get the opposite of a number, multiply it by -1.
How would the number 231 be expressed as a binary number?
231 written in binary numbers is 11100111
If a number is even then it's opposite is a whole number?
The opposite of an even number is an odd number.
What is the opposite of 0.1?
The opposite of 0.1 is -0.1. In mathematics, the opposite of a number is the number that, when added to the original number, equals zero. Since 0.1 is a positive number, its opposite would be a negative number with the same magnitude but in the opposite direction on the number line.
What goes into 231?
To determine factors of a number it is necessary to divide the number by prime numbers of increasing value. If there is no remainder then the prime number is a factor. The square root of 231 is approximately 15 so it is necessary to divide by all the prime numbers up to 13 (15 is not a prime number). 231 ÷ 2 leaves a remainder of 1 231 ÷ 3 divides exactly 77 times (which is 7 x 11 - both are prime numbers) 231 ÷ 5 leaves a remainder of 1 231 ÷ 7 divides exactly 33 times (which is 3 x 11 - both are prime numbers) 231 ÷ 11 divides exactly 21 times (which is 3 x 7 - both are prime numbers) 231 ÷ 13 leaves a remainder of 10 If we multiply together the three numbers that are shown to be factors 3 x 7 x 11 = 231 this confirms that there are no other factors of 231 except 1 and 231 itself. This last condition is true for every positive integer. 231 is divisible by 1, 3, 7, 11 and 231
