Yep! 🧡
- 21 is an odd composite number, composed of two prime numbers multiplied together (3 and 7).
- 21 is the sum of the first six natural numbers (1 + 2 + 3 + 4 + 5 + 6 = 21), making it a triangular number.
- And 21 is part of the Fibonacci sequence, (0, 1, 1, 2, 3, 5, 8, 13, 21…).
AníbalSantaella / Aníbal Santaella
npub1gw…qaykg
2024-03-07 18:11:02
in reply to nevent1q…xfns
Author Public Key
npub1gwwfggk4zhf8lxe0dexdzp39za6uuxjuhscepz6ysf8fh2a5y58svqaykgPublished at
2024-03-07 18:11:02Event JSON
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