15 = 3 . 5
100 = 22 . 52
25 = 52
60 = 22. 3 . 5
15 = 2 x 5
100 = 22 x 52
25 = 52
60 = 22 x 3 x 5
15 = 3 x 5
100 = 22 x 52
25 = 52
60 = 22 x 3 x 5
15 = 3. 5
100 = 2^2 . 5^2
25 = 5^2
60 = 2^2 . 3 . 3
k nha phạm doan phuc
\(15=3.5\)
\(100=2^2.5^2\)
\(25=5^2\)
\(60=2^2.3.5\)
\(15=2.5\)
\(100=2^2.5^2\)
\(25=5^2\)
\(60=2^2.3.5\)
\(15=2,5\)
\(100=2^2\cdot5^2\)
\(25=5^2\)
\(60=2^2\cdot3\cdot5\)