Help Help Help Help Help Help Help Help Help Prove the divisibility of the following numbers: 10^9+10^8+10^7 by 555

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Help Help Help Help Help Help Help Help Help Prove the divisibility of the following numbers: 10^9+10^8+10^7 by 555

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Thu Thảo 4 years 2021-08-11T07:40:15+00:00 1 Answers 13 views 0

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  1. trucchi
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    2021-08-11T07:42:01+00:00
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    10⁹ + 10⁸ + 10⁷ = 10⁷ (10² + 10¹ + 10⁰)

    … = 10⁷ (100 + 10 + 1)

    … = 10⁷ × 111

    … = (2 × 5)⁷ × 111

    … = 2⁷ × 5⁷ × 111

    … = 2⁷ × 5⁶ × 555

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