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3 years ago

Find the GCF of 21, 30

Mathematics

2 answers:

sweet-ann [11.9K]3 years ago

5 0

Answer:

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

Evgesh-ka [11]3 years ago

3 0

Answer:

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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qwelly [4]

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3 years ago

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Sergeeva-Olga [200]

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-------------------------------

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3 years ago

Hurry please!

muminat

Answer:

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3 0

3 years ago