Răspuns :
( 700; 560; 280 ) = 2² • 5¹ • 7¹ = 4 • 5 • 7 = 20 • 7 = 140
700 = 2² • 5² • 7¹
560 = 2⁴ • 5¹ • 7¹
280 = 2³ • 5¹ • 7¹
________________
700 | 2
350 | 2
175 | 5
35 | 5
7 | 7
1 | → 700 = 2² • 5² • 7¹
560 | 2
280 | 2
140 | 2
70 | 2
35 | 5
7 | 7
1 | → 560 = 2⁴ • 5¹ • 7¹
280 | 2
140 | 2
70 | 2
35 | 5
7 | 7
1 | → 280 = 2³ • 5¹ • 7¹