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7 May, 08:52

9) Write as a product of prime factors.

a 77 =

b 42 =

C 40 =

+4
Answers (1)
  1. 7 May, 12:32
    0
    A = 7,11

    B=2,3,7

    C=2,2,2,5

    Because 7x11 = 77 when both are prime numbers

    2x3x7=42 when all 3 are prime

    And 2x2x2x5=40 when all 4 numbers are prime
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