To find the common factors of 42 and 231, we first need to find the prime factorization of each number. The prime factorization of 42 is 2 x 3 x 7, and the prime factorization of 231 is 3 x 7 x 11. The common factors of 42 and 231 are the prime numbers that appear in both factorizations, which are 3 and 7. Therefore, the two common factors of 42 and 231 are 3 and 7.
Chat with our AI personalities
Prime factors of 42 are: 2, 3 and 7 Prime factors of 237 are: 3 and 79
1, 2, 7 and 14 are the common factors of 28 and 42. Since all of the numbers are common factors, we will not be able to select two.
The GCF of 210 and 231 is 21. The factors of 231 are: 1, 3, 7, 11, 21, 33, 77 and 231 The factors of 210 are: 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105 and 210 The highest common factor is 21
43 is a prime number so the common factors of 43 and 42 are 1
The common factors of 42 and 54 are: 1, 2, 3, and 6