Let P = (13) (17) (23) … (97) be the product of all two digit numbers that end with either a 3 or a 7. What are the last two digits of P?

Question

Let P = (13) (17) (23) … (97) be the product of all two digit numbers that end with either a 3 or a 7. What are the last two digits of P? PLEASE ANSWER AS QUICK AS POSSIBLE.

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Kylie 8 months 2021-09-23T10:05:14+00:00 1 Answer 0 views 0

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    2021-09-23T10:07:01+00:00

    Answer:(93) ,(97)

    Step-by-step explanation:

    Seeing the series (13) (17) (23) …….(97)

    The first number is repeating twice with 3 and 7 alternatively. After 1 the next number will be 2 with 3 and 7 alternatively and thus the remaining terms till 97will be

    (13)(17)(23)(27)(33)(37)…..(93)(97)

    Thus last two terms will be (93) ,(97)

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