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Dawson Hoover
Mathematics
23 September, 23:57
Find the GCF of 21, 30
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Dominic Booker
24 September, 00:05
0
3
Step-by-step explanation:
Factors of 21: 1, 3, 7, 21
Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
The GCF is the largest factor they both have.
GCF = 3
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Keagan Ochoa
24 September, 00:18
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The GCF of 21 and 30 is 3.
Step-by-step explanation:
Find the prime factorization of 21
21 = 3 * 7
Find the prime factorization of 30
30 = 2 * 3 * 5
To find the gcf, multiply all the prime factors common to both numbers:
Therefore, GCF = 3
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