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The prime factors of 18 are 2, 3 and 3.
The prime factors of 42 are 2, 3 and 7.
Thus, the prime factors which are common to both are 2 and 3.
However, the usual manner of answering this sort of question is to give the greatest common factor which is common to both (or all) numbers, and not only prime factors - so as 2 and 3 are common to both numbers and as 2 x 3 = 6 the 'other' answer to the question is 6.
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What greatest common factors go into 42?
The greatest common factor of 42 depends upon the other numbers with which 42 has COMMON factors. However, the greatest common factor HAS to be one of the factors of 42 which are: 1, 2, 3, 6, 7, 14, 21, 42.
What are the common factors of 14 and 42?
The factors of 14 are 1, 2, 7, and 14 The factors of 42 are 1, 2, 3, 7, 14, 21, and 42 The Common factors of 14 and 42 are 1, 2, 7, and 14
What are the Common Factors for the numbers 6 and 42?
The common factors for the numbers 6 and 42 are: * 1 * 2 * 3 * 6
What are the common factors of 18 and 36?
The common factors of 18 and 36 are 18,9,6,3,2,1.
What are the common factors of 66 and 42?
The common factors are: 1, 2, 3, 6
