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How do you get the number 13 only using 1234?
Ah, what a happy little challenge! To get the number 13 using only the digits 1, 2, 3, and 4, you can add 1, 2, 3, and 4 together. That would give you 10, then you can add 3 to that to get 13. Just remember, there are no mistakes, only happy accidents in math!
Is the quotient of two nonzero numbers always a rational number?
Yes, as long as the two nonzero numbers are themselves rational. (Since a rational number is any number that can be expressed as the quotient of two rational numbers, or any number that can be written as a fraction using only rational numbers.) If one of the nonzero numbers is not rational, the quotient will most likely be irrational.
How do you know if a number is a prime number?
A prime number is a number which can only be divided by itself and 1. All even numbers are not prime numbers (except for 2) Only odd numbers, try dividing the number with a few possible other numbers, if you can't find any whole answers, than that number is a prime number.
Is two the only prime number?
no. 2 is the only even prime number. Prime numbers are numbers that only have two factors; one and itself. E.g. The number 7 only has two factors- 1x7=7. 2 is a factor of all even numbers, therefore no other even numbers are prime. They are composite. 2, however, is a prime number, as it's only factors are itself (2) and 1.
What are the whole numbers that are not counting numbers?
'0' is the only whole number that is not a counting number. Negative integers do not belong to whole numbers.
