The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60The common factors of 42 and 60 are 1, 2, 3 and 66 is the GCF420 is the LCM
the factors of 42 are 1,42,6,7,2,21,3,14
The prime factors of 66 are: 2 3 11
The GCF is 6.
A list of all possible factors for individual numbers is available in the Related Question "What are the factors of the numbers from 1 to 200?" For more detailed information on the factors of each number, refer to questions about an individual number, such as "What are the factors of 42?" If the question about a specific number does not yet exist, please make one, but please do not combine multiple questions into one because that makes it more difficult for another user to find the information. If the intent of the question was to ask about the greatest common factor of 42, 66, 72, 99, and 126, it can be calculated by identifying the common prime factors and multiplying them together. The prime factors of 42 are 2, 3, and 7. The prime factors of 66 are 2, 3, and 11. The prime factors of 72 are 2, 2, 2, 3, and 3. The prime factors of 99 are 3, 3, and 11. The prime factors of 126 are 2, 3, 3, and 7. The only prime factor in common is 3, so the greatest common factor is 3.
The GCF is 3.
The common factors are: 1, 2, 3, 6
The GCF is 6.
42 and 66 have the greatest common divisor of 6, so you can divide both factors by 6 to get 7/11.
42:42,84,126,168,210,252,294,336,378,420,462 66:66,132,198,264,330,396,462
30, 42, 66, 70 and 78.
30, 42, 66, 70 and 78.
The GCF is 6.
30, 42, 66, 70 and 78.
The greatest common factor of 42 and 66 is 6.6
42/66=42/6=7 66/6=11 =7/11
24, 30, 40, 42, 54, 56, 66, 70, 78 and 88.