2 * 2 * 5 * 7 * 11 = 1540
1540 has the prime factorization of 2 times 2 times 5 times 7 times 11
2 x 2 x 5 x 7 x 11 is the prime factorization of 1540
1540
2,310 is.
It is: 14/55
(7 - 2√5)(11 + √5) = (7 × 11 + 7 × √5) + (-2√5 × 11 + -2√5 × √5) = 77 + 7√5 - 22√5 - 2 × 5 = 67 - 15√5
2•2•5•3•7•11=4,620 
55 / 11 + 7 * 2 + 14 55/11 = 5 7 * 2 = 14 Therefore, 5+14+14=33
6468
2/5 - -11/7 = 69/35
LCM(2, 5, 7, 11) = 770.