a) 120 = 12×10
= 2²×3×5×2
120 = 2³×3×5
b) 210 = 21×10
210 = 3×7×5×2
c) 340 = 34×10
= 17×2×5×2
340 = 2²×17×5
d) 378 = 42×9
= 7×6×3²
= 7×3×2×3²
378 = 3³×7×2
e) 1280 = 128×10
= 16×8×5×2
1280 = 2⁸×5
f) 6742 = 2×3371
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Verified answer
a) 120 = 12×10
= 2²×3×5×2
120 = 2³×3×5
b) 210 = 21×10
210 = 3×7×5×2
c) 340 = 34×10
= 17×2×5×2
340 = 2²×17×5
d) 378 = 42×9
= 7×6×3²
= 7×3×2×3²
378 = 3³×7×2
e) 1280 = 128×10
= 16×8×5×2
1280 = 2⁸×5
f) 6742 = 2×3371
Ahí tienes