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The GCF of 120 and 200 is 40

One of the simplest ways to work out the gcd of 2 numbers is to take their prime factors, and multiply together the ones each number has in common. In this case,

120=2x2x2x3x5, 200=2x2x2x5x5

they have three 2's and one 5 in common, highlighted in bold above, and 2x2x2x5=40.

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8y ago
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Q: What is the greatest common factor of 120 and 200?
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