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This lesson takes approximately 11 minutes to complete. It includes 0 interactive questions with immediate feedback.

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LektionMatematikNybörjare

The Number That Wouldn't Share — What is a prime number, and why can't you split it into equal rows?

A prime number is a number that can't be split into equal rows — it makes only a straight line, never a rectangle. Lay out festival seeds and discover it with your own hands: six and twelve fall into tidy rectangles, but seven leaves one seed over no matter how many rows you try. Meet the prime numbers — the loners that won't share, and the building blocks every other number is secretly made from.

11 minÅrskurs 3, 4, 5

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