Question

3. Find prime factors of the following numbers by division method.

(C) 215​

Answer 1

Answer:

Hence, the prime factorization of 215 is 5×43 or 51 × 431.

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Answer 2

Answer:

1, 5, 43, 215

Step-by-step explanation:

We know that the factors of a number can be found using two different methods, such as the division method and the prime factorization method. Now, let us first start with the division method.

In the division method, the number 215 is divided by different consecutive integers. If the integer divides 215 completely and leaves the remainder 0, then the integers are the factors of 215. Go through the following procedure to find the factors of 215.

215/1 = 215 (Factor is 1 and remainder is 0)

215/5 = 43 (Factor is 5 and remainder is 0)

215/43 = 5 (Factor is 43 and remainder is 0)

215/215 = 1 (Factor is 215 and remainder is 0)

If we divide 215 by any numbers other than 1, 5, 43 and 215, it leaves the remainder of some value. Hence, the factors of 215 are 1, 5, 43 and 215.