# Finding the wavelength of a radio wave [closed]

I've been given that a radio wave travels at $$1230 \text{kHz}$$

$$(1230 \times 10^3 \text{Hz})$$

I simply had to find the wavelength of the radio wave, since a radio wave travels at $$c$$. I simply set up the following: $$c = \lambda \times(1230 \times 10^3)$$ where $$c$$ is the speed of EM waves

solving for $$\lambda$$ gives me approx. $$2.44\times 10^12 m$$, but my solution sheet shows $$244 m$$. Where is the unit conversion incorrect?

## closed as off-topic by The Photon, Qmechanic♦Apr 16 at 4:43

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• Count your exponents! – Pieter Apr 15 at 23:01
• Dividing by a power of 10 changes the sign in the exponent! – noah Apr 15 at 23:10
• Voting to close because this appears to be a simple math error. – The Photon Apr 16 at 4:06
• Try doing it on a calculator, but make sure you include all the 0's. – hdhondt Apr 16 at 5:06