Which of the following numbers has the largest number of

Eden Solomon

Eden Solomon

Answered question

2022-06-29

Which of the following numbers has the largest number of unique ' factors? { 85 ,   138 ,   317 ,   207 }

Answer & Explanation

grcalia1

grcalia1

Beginner2022-06-30Added 23 answers

Step 1
Prime factors of 85 are 5 and 17 as 85 = 5 × 17
Prime factors of 138 are 2, 3 and 23 as 138 = 2 × 3 × 23
317 is itself ' as it does not have any factor other than 1 and itself.
Prime factors of 207 are 3 and 23 as 207 = 3 × 3 × 23
Hence, 138 has the largest number of unique ' factors.

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