Prince Philip: Royal highlights
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Prince Philip's royal engagements in numbers

2 August 2017 Last updated at 17:54 BST

Thousands of appearances, handshakes and plaque unveilings, even feeding elephants.

The Queen's husband, Prince Philip, has done lots in his career but now he's retiring from public duties.

He's called himself the "world's most experienced plaque-unveiler".

So how many meetings do you think he's been to? A hundred? A thousand?

And how many speeches has he given?

Watch this.