2 votes 2 votes $5^{4}-1$ is divisible by $13$ $31$ $5$ none of these Quantitative Aptitude cat1995 quantitative-aptitude factors + – makhdoom ghaya asked Aug 28, 2017 • edited Apr 14, 2023 by Lakshman Bhaiya makhdoom ghaya 8.0k points 862 views answer comment Share See all 0 reply Please log in or register to add a comment.
1 votes 1 votes $5^{4}-1\\ =625-1\\ =624$ Which is divided by 13. Hence,Option(A)13. Leen Sharma answered Aug 30, 2017 Leen Sharma 11.5k points comment Share See all 0 reply Please log in or register to add a comment.