Question

1,5,17,and 85 are factors of

Answer 1

0.5 is the common factor of 1,5,17,85.
1 is factor for 1.
1 and 5 are two factors for 5
1 and 17 are the 2 factors for 17
and 
1, 5 and 85 are the factors for 85

Answer 2

Concept

Prime factorization is the process of factoring a number with respect to prime numbers. That is, the factors are prime numbers.

Given

We have been given four factors which are 1,5,17 and 85 of a number .

Find

We are asked to determine the number of given factors .

Solution

Primes factorization of 1,5,17 and 85 is given by

$1=1\\5=5\\17=17\\85=5\times17$

As we can see that 5 on multiplying by 17 gives 85 and the multiplication of others factor 1 , 5 , 7 also gives 85 and 85 is tha factore of 85 also .

Hence , factors of 85 are 1 , 5 ,17 and 85 .

Factors of 85 are the numbers which when multiplied in pairs give the product as 85.

Therefore , 1,5,17and 85 are the factors of 85 .

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