The binding energy of nucleus may be defined as the energy equivalent to the mass defect of the nucleus.

If $∆m$ is mass defect than according to Einstein's mass energy relation.

Binding Energy

$=∆ m{c}^2 = \left[\left\{Z{m}_p + \left(A-Z\right)m_n\right]-M\right]c^2$

$=\left(7 \times 1.00783 + 7 \times 1.00867-14.00307\right)c^2$

$\mathrm{o}\mathrm{r} \mathrm{B}\mathrm{E}=0.1124 \times 931.5 \mathrm{MeV}$

or $\text{BE}=104.6\text{MeV}$