5 or 10
Yes. If one number is a factor of the other, the greater number will be the LCM of the two.
55 (the other number is 44).
any other positive numbers
I don't know how to "grate" a number ... numbers are not cheese. An infinite number of numbers are "greater" (larger) than 64. Likewise, an infinite number of numbers are not "greater" (in other words, less than) 64, starting with 63, 62, 61, ... Actually, there are an infinite numbers that are less than 64, but greater than 63, unless you specify "whole numbers".
A prime number has only two factors, one and the number itself. Numbers that are multiples of other numbers greater than one have more than two.
Yes. If one number is a factor of the other, the greater number will be the LCM of the two.
55 (the other number is 44).
The greater number.
any other positive numbers
I don't know how to "grate" a number ... numbers are not cheese. An infinite number of numbers are "greater" (larger) than 64. Likewise, an infinite number of numbers are not "greater" (in other words, less than) 64, starting with 63, 62, 61, ... Actually, there are an infinite numbers that are less than 64, but greater than 63, unless you specify "whole numbers".
No, the set of irrational numbers has a cardinality that is greater than that for rational numbers. In other words, the number of irrational numbers is of a greater order of infinity than rational numbers.
the greater of the two.
The LCM is the greater number.
The sum of two prime numbers greater than 2 is an even number. The sum of 2 and any other prime number is an odd number.
A prime number has only two factors, one and the number itself. Numbers that are multiples of other numbers greater than one have more than two.
3 is a prime number. The other numbers are even numbers greater than 2, so they are composite numbers, not prime numbers.
It depends on what two numbers you have together and what mathematical operation you are applying and much greater one number is that the other number and if those numbers are positive or negative.