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To find the GCF of two numbers you first need to work out the prime factors of those numbers. In this case:
30 = 2x3x5
40 = 2x2x2x5
The next step is to identify any common factors. In this case, both numbers have a 2 and a 5 as prime factors. To find the GCF, we simply multiply these numbers together:
2x5 = 10
Thus the GCF of 30 and 40 is 10.
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Related Questions
What is the GCF of 40 and 30 and 95?
The GCF is 5.
What is the GCF of 30 40 50?
The GCF is 10.
What is the greatest common factor of 20 and 40 and 15 and 30?
The GCF of 20 and 40 is 20 The GCF of 15 and 30 is 15 The GCF of 15, 20, 30 and 40 is 5.
What is the greatest common factor of 24 and 30 and 40?
The GCF is 2.
What is the greatest common factor for 40 50 and 30?
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What is the gcf of 24 30 and 40?
The GCF is 2.
What is the GCF of 15 40 and 30?
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What is the GCF of 30 40 20?
The GCF is 2.
What is the GCF and LCM of 30 and 40?
30 = 3 x 1040 = 4 x 10The GCF of 30 and 40 is 10.30 x 4 = 12040 x 3 = 120The LCM of 30 and 40 is 120.
What is the GCF for 30 50 and 40?
It is 10
Hcf of 30 and 40?
The GCF is 10.
If there were 30goldfish and 20angelfish. how would the gcf change if there were 40 gold fish.?
The GCF of 30 and 20 is 10. The GCF of 40 and 20 is 20.
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