To provide a method for converting magnetic field energy of a stationary permanent magnet to electric energy.

The prime number field theory is applied to magnetic fields generated when the same magnetic poles of a plurality of permanent magnets are brought into contact with/brought closer to one another, that is to say, prime-number magnetic fields. Thus, the prime-number magnetic field generated by bringing the north poles of the vertically magnetized permanent magnets into contact with each other and the prime-number magnetic field generated by bringing the south poles of the horizontally magnetized permanent magnets into contact with each other are disposed in the state of facing each other. A coil is disposed within the fields so that a voltage can be induced to both ends of the coil to bring about effective electric energy. Consequently, magnetic field energy of the stationary permanent magnet can be converted to the electric energy.