The first step in finding the factors of a number is to break it down into its prime factors. 55 is known from times tables to be 5x11, so we know its prime factorization is 5x11. To find any factors other than 1, you just multiply any combination of the prime factors together. In this case, 55 gives us the factors of:
1, 5, 11 and 55.
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The factors of a number are the whole numbers that can be multiplied together to equal that number. The factors of 55 are 1, 5, 11, and 55. This is because 1 x 55 = 55 and 5 x 11 = 55. These are the only combinations of whole numbers that can multiply to give the original number, making them the factors of 55.
1,5,11,55 and it is a prime number
110
Factors of 25 are 1, 5, and 25. Factors of 55 are 1, 5, 11, and 55. The common factors of 25 and 55 are 1 and 5.
The prime factors of 55 are 5,11.