In this video, Amy Shira Teitel of Vintage Space talks about how many rockets it took to bring Apollo to the moon.
If you’re keeping track, that’s more than 83 engines and motors; you might have counted 87. There were actually 88 on the Saturn V, but five did nothing during an optimal mission. The four motors that powered the Launch Escape System were aided by a pitch motor that would direct the escaping Command Module safely away from the exploding rocket. Those never fired so I left them off my count.