4=2 X 2and 15=3 X 5 since there is no common prime factor, so HCF of 4and15 is 0. Is the answer correct? If not, what is the correct HCF?

4=2 X 2and 15=3 X 5 since there is no common prime factor, so HCF of 4

1.	4=2 X 2and 15=3 X 5 since there is no common prime factor, so HCF of 4and15 is 0. Is the answer correct? If not, what is the correct HCF?
Answer» <html><body><p>hiStep-by-step <a href="https://interviewquestions.tuteehub.com/tag/explanation-455162" style="font-weight:bold;" target="_blank" title="Click to know more about EXPLANATION">EXPLANATION</a>:<a href="https://interviewquestions.tuteehub.com/tag/since-644476" style="font-weight:bold;" target="_blank" title="Click to know more about SINCE">SINCE</a> there is no common prime factor , so HCF of 4 and 15 is 0. <a href="https://interviewquestions.tuteehub.com/tag/clearly-420736" style="font-weight:bold;" target="_blank" title="Click to know more about CLEARLY">CLEARLY</a>, we can see that the <a href="https://interviewquestions.tuteehub.com/tag/highest-1022683" style="font-weight:bold;" target="_blank" title="Click to know more about HIGHEST">HIGHEST</a> common factor is 1. \[\therefore \] HCF = 1 is the correct HCF.</p></body></html>