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Cosa
Cosa asked in Science & MathematicsMathematics · 1 decade ago

Trying to help my daughter. 6 grade math.?

The related nr- pair (125,2) represents the 2 factors of a mystery nr.

A) Whats the mystery Nr?

B)Whats t prime factorization of this nr?

C)How can the prime factorization be written using exponents?

Update:

Thanks guys

2 Answers

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  • Pranil
    Lv 7
    1 decade ago
    Favorite Answer

    125, 2 in this pair GCD of numbers is 1 as they do not have common factor.

    in english it is called co-prime numbers.

    A) Whats the mystery Nr? may be co-prime having GCD 1

    B)Whats t prime factorization of this nr? 125 = 5 × 5 × 5 (all the factors are prime called prime factors.

    C)How can the prime factorization be written using exponents? 125 = 5^3 and 2 = 2^1

    ----

  • Sde
    Lv 4
    1 decade ago

    a) its factors are 2 and 125, so the number is 2*125 = 250 (as it doesn't have any other factors and 2 and 125 have no common factors).

    b) 2 is already a prime,

    125 = 5*25 = 5*5*5

    So 250 = 2*5*5*5.

    c) 250 = 2*(5*5*5) = 2^1 * 5^3

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