✨ Best Answer ✨
45²=2025を利用
2021=2025-4
=45²-2²
=(45+2)(45-2)
=47×43
47も43も素数なので
2021を素因数分解すると47×43
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✨ Best Answer ✨
45²=2025を利用
2021=2025-4
=45²-2²
=(45+2)(45-2)
=47×43
47も43も素数なので
2021を素因数分解すると47×43
Users viewing this question
are also looking at these questions 😉
ありがとうございます！