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The GCF of 75 and 40 is 5. To figure out the GCF of something, you can simply follow these steps:

Step 1: Find the factors of the two numbers. The numbers have no factors greater than themselves. We can stop at 40 on each, though, because 40 is the lowest number.

75: 1, 3, 5, 15, 25. (75 is one too [obviously], but we stopped at 40.)

40: 1, 2, 4, 5, 8, 10, 20, 40.

Step 2: Find all of the COMMON factors. The greatest one is the GCF.

1, and 5.

1 < 5.

GCF=5

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14y ago

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