15−6=9 25−16=9 35−276=9 ∴ The Required number will be LCM of (15,25,35) k-9<br/><imgclass="img−fluidquestion−image"alt="image"src="https://cdn.tardigrade.in/img/question/mathematics/eb9cbdca72d4448747b296b625808e87−.jpeg"/><br/>\therefore \operatorname{LCM}(5,25,35)=525 \text {. }<br/>Therefore,requirednumber=525 k-9.<br/>Ifk=1$, the number will be 516 .