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You list all the factors of each number, then compare the lists to find numbers that
are on both lists, then finally pick the highest of those.
Factors of 21: 1, 3, 7, and 21.
Factors of 630:
1, 2, 3, 5, 6, 7, 9, 10, 15, 18, 21, 30, 35, 42, 63, 70, 90, 105, 126, 210, 315, and 630.
Numbers on both lists (common factors): 1, 3, 7, and 21.
Highest common factor: 21
What else can I help you with?
What is the greatest common factor of 630 and 1155?
The greatest common factor of 630 , 1155 = 105
What is the greatest common factor of 630 and 172?
The greatest common factor of 630 , 172 = 2
What is the greatest common factor of 630 and 84?
The greatest common factor of 630 , 84 = 42
What is the greatest common factor of 336 and 630?
To find the greatest common factor (GCF) of 336 and 630, we first need to find the prime factorization of each number. The prime factorization of 336 is 2^4 * 3 * 7 and the prime factorization of 630 is 2 * 3^2 * 5 * 7. To find the GCF, we take the highest power of each common prime factor, which is 2^1 * 3^1 * 7^1 = 42. Therefore, the greatest common factor of 336 and 630 is 42.
What is the greatest common factor of 630 and 721?
The GCF is 7.
What is the greatest common factor of 108 and 630?
The greatest common factor of 108 and 630 is 18.
What is the greatest common factor of 630 and 1155?
The greatest common factor of 630 , 1155 = 105
What is the greatest common factor of 630 and 172?
The greatest common factor of 630 , 172 = 2
What is the greatest common factor of 630 and 84?
The greatest common factor of 630 , 84 = 42
What is the greatest common factor of 336 and 630?
To find the greatest common factor (GCF) of 336 and 630, we first need to find the prime factorization of each number. The prime factorization of 336 is 2^4 * 3 * 7 and the prime factorization of 630 is 2 * 3^2 * 5 * 7. To find the GCF, we take the highest power of each common prime factor, which is 2^1 * 3^1 * 7^1 = 42. Therefore, the greatest common factor of 336 and 630 is 42.
What is the greatest common factor of 420 and 630?
The GCF of 420 and 630 is 210.
What is the greatest common factor of 630 1848?
42
What is the greatest common factor of 630 and 840?
210
What is the greatest common factor of 630 and 875?
The answer is 35.
What is the greatest common factor of 441 and 630?
It is: 63
What is the greatest common factor of 630 and 721?
The GCF is 7.
What is the greatest common factor of 1638000 and 62370?
The GCF is 630.
