All Fermi answers
Fermi #104 · Question 1

How many times is the word "bye" sung in *NSYNC's "Bye Bye Bye"?

Explore the official answer and the simple reasoning behind this Fermi estimate.

1QUESTION 1 OF 3

Answer & explanation

The official answer, with Fermi’s reasoning step by step.

Answer & explanation

Official answer

52

times

How to estimate it

Fermi’s official “Napkin math”

You probably remember the part of the chorus: "ain't no lie, baby bye, bye, bye, (bye, bye)." That repeats twice per chorus. Pop choruses often repeat 4 times, so 40 should be close.

"Baby bye, bye, bye, (bye, bye)"
5
Twice per chorus
× 2
Choruses
× 4
5 × 2 × 4
≈ 40

Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.

Source calculation & reference
Every sung 'bye' (Genius lyrics)
52

Reference cited by Fermi: Genius, Bye Bye Bye lyrics

How close was your guess?

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Compare by ratio: divide the larger number by the smaller one. The closer to 1×, the better.

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