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The greatest common factor of 49, 47, and 84 is 1.

Here’s why:

49 = 7 × 7

47 is prime

84 = 2 × 2 × 3 × 7

Since 47 is prime, its only factors are 1 and 47. Neither 49 nor 84 is divisible by 47, so the only factor all three numbers share is 1.

(Note that 49 and 84 share a factor of 7, but 47 doesn’t, so 7 isn’t common to all three.)

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Ashutosh Singh

Lvl 2
∙ 2w ago
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