The prime factorization of 42 is 2 x 3 x 7. In index form, this can be written as 2^1 x 3^1 x 7^1. This means that 42 can be expressed as the product of these prime numbers, each raised to the power of 1.
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Prime factors of 42 are: 2, 3 and 7
There are eight factors of forty two: 1, 2, 3, 6, 7, 14, 21, 42. Those factors which are prime numbers are 2,3 and 7. (The prime factorization of 42 is 2x3x7). Of those, the two that are odd are 3 and 7
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The prime factors of 42 are 2 x 3 x 7.
The factors of 42 are: 1 2 3 6 7 14 21 42 The prime factors are: 2 x 3 x 7 & The factors of 56 are: 1 2 4 7 8 14 28 56 The prime factors are: 2 x 2 x 2 x 7
Two numbers which are "relatively prime" have no common prime factors. To illustrate, let's write several numbers in terms of their prime factors: 24 = 2 x 2 x 2 x 3 25 = 5 x 5 42 = 2 x 3 x 7 70 = 2 x 5 x 7 You can see that 24 and 25 are relatively prime, because they don't share any common prime factors. Likewise, 25 and 42 are relatively prime. 24 and 42, however, are NOT relatively prime because they share the common factors of 2 and 3. Likewise 25 and 70 are NOT relatively prime because they share the common factor 5. When a fraction is in its simplest form, the numerator and denominator are relatively prime.