29
29 + 49 = 78
49 + 28 = 77
49
29
49
7/4 = 49/28 9/7 = 36/28 49 + 36 = 85/28 or 3 and 1/28
455
49 + 49 + 49 + 49 + 49 = 245 OR 49*5=245
Scandium 49 has 24 protons because it is scandium (which has an atomic number of 21) plus 28 neutrons.
Factors of 49: 1, 7, 49 Factors of 29: 1, 29
The lcm of 28 and 49 is 196. The gcf of 28 and 49 is 7.