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Is 1.333 an irrational number?
Technically, no. A rational number can be defined as a fraction, and that is 1333/1000. However, 1.333....., as you might mean, is an irrational number because there are infinite decimals, so it cannot be written as a fraction.
Is 0.7866666666 a rational or irrational number?
Oh, dude, that number is rational. It might have a bunch of repeating decimals, but hey, it can still be written as a fraction. So, like, it's totally chill in the world of rational numbers.
What is the difference between real and rational numbers?
The rational numbers are a subset of the real numbers. You might recall that rational numbers are those that can be expressed as the ratio of two whole numbers (no matter how large they are). Irrational numbers, like pi, cannot. But both sets (the rational and irrational numbers) are subsets of the real numbers. In fact, when we look at all the numbers, we are looking at the complex number system. We break that down into the real and the imaginary numbers. And the real numbers have the rational and irrational numbers as subsets. It's just that simple.
What number is UII?
That might be VII, the Roman numeral for 7.
Why is 45 a multiple of each factor?
If you mean "each of its factors", then you might say "by definition". If a number is a factor of another number, then that means that the other number is a multiple.
