As a product of its prime factors: 5 times 11 = 55
55, 110, 165, 220, 275, 330, 385, and etc. As long as it is a multiple of 55, you could also divide other numbers by 55, but it won't be a whole number.
The concepts "even" and "odd" apply to whole numbers. They don't make sense for other classes of numbers, such as rational numbers, real numbers, complex numbers, etc.
5 and 11
54 + 55 + 56 = 165
54+55+56 is one possibility.
You use the apostrophe, like this: '55
The numbers are: 55 and 55
Well, darling, that's an easy one. The two prime numbers that make 55 are 5 and 11. 5 is a prime number because it can only be divided by 1 and itself, and 11 is also a prime number for the same reason. So, 5 times 11 equals 55. Math made fun, you're welcome!
45 + 55 = 100 45 = ½(9 x 10) 55 = ½(10 x 11)
55 can be divided by 1, 5, 11, and 55. These are the factors of 55, which are numbers that can divide evenly into 55 without leaving a remainder. Factors are pairs of numbers that multiply together to give the original number, in this case, 55.
A common factor is a number that is a factor of both (or all) the numbers in question. Therefore 55 would be a common factor of 110 and 165 because both of these numbers can be divided by 55.However, a number by itself (and not in reference to other numbers) cannot be called a common factor. So 55 could be a common factor, but isn't necessarily always one.
55 and 110