The ratio of the power of a light source S1 to that the light source S2 is 2. S1 is emitting 2 × 1015 photons per second

The ratio of the power of a light source S1 to that the light source S2 is 2. S1 is emitting 2 × 10^15 photons per second at 600 nm. If the wavelength of the source S2 is 300 nm, then the number of photons per second emitted by S2 is_____×10^14 .                                                                         (JEE-2025)