Multiple choice

If M = 44 $\times$ 65 $\times$ 84, which of the following groups gives the prime factors of M?

  1. 2, 3, 5, 7, 11, 17

  2. 2, 3, 5, 7, 11, 13

  3. 3, 4, 5, 7, 11, 13

  4. 2, 3, 5, 7, 11
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

M = 44 $\times$ 65 $\times$ 84 M = 4 $\times$ 11 $\times$ 13 $\times$ 5 $\times$ 12 $\times$ 7 = 2 $\times$ 2 $\times$ 11 $\times$ 13 $\times$ 5 $\times$ 2 $\times$ 2 $\times$ 3 $\times$ 7 So, the prime factors of M are 2, 3, 5, 7, 11 and 13.

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