Some prime factors of 455 are prime factors of n. Only one prime factor of 455 is not a prime factor of n. What is the greatest of 455 / n?
options are 5,7,11,13,15
OA 13
prime factor
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If they would have asked smallest integer, then:liferocks wrote:455=5*7*13
So greatest 455/n is 13
And option D
n= 13* 7
455/(13*7)
13*7*5/(13*7)
=5
Small work ard....!!!