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What is are all the common factors of 28 and 42?
The prime factors of 28 are 2,2 and 7 The prime factors of 42 are 2,3 and 7 Thus the common factors are 1,2,7 and 14.
What are the common factors of 42 and 23?
To work this out, you first have to split the numbers down into their prime factors: 42 = 2x3x7 23 = 23 There are no common prime factors. This means that the only common factor of 42 and 23 is 1.
What are the common factors of 42 and 43?
43 is a prime number so the common factors of 43 and 42 are 1
What is the least common multiple of 14 and 42?
The LCM of 14 and 42 is 42. The simplest method to determine the least common multiple in this case is to notice that 42 is a multiple of 14. Since 42 is a multiple of 14, the least common multiple is 42. To determine the least common multiple of two numbers, you can also determine the prime factors of both numbers. Then, determine the prime factors they have in common. Multiply all their prime factors together (in other words, multiply both numbers together) and divide by the prime factors they have in common (in other words, their greatest common factor). The prime factors of 14 are 2 and 7. The prime factors of 42 are 2, 3, and 7. The greatest common factor of 14 and 42 is 14. So, the least common multiple of 14 and 42 is (2x7) x (2x3x7) ÷ 14 = 42.
What prime factors do 42 and 21 have in common?
7
What is the greatest common factor of 35 and 42?
The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 35 are 5 and 7. The prime factors of 42 are 2, 3, and 7. The common prime factors are a single 7, so the greatest common factor is 7.
What is the Prime factor of 42 and 660?
42 - The prime factors are: 2, 3 and 7660 - The prime factors are: 2, 3, 5 and 11
What are the prime factors of 42 and 237?
Prime factors of 42 are: 2, 3 and 7 Prime factors of 237 are: 3 and 79
What are the common prime factors of 28 and 42?
2 and 7
What prime factors do 42 and 30 have in common?
2 and 3
What are common prime factors of 42 and 56?
They are 2 and 7.
What is the greatest common factor of 23 and 42?
Since 23 is a prime number, its only factors are 1 and itself. Since 42 is not divisible by 23, the greatest common factor is 1. Another way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 23 are 1 and 23. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The only common factor is 1. Therefore, the greatest common factor is 1, which means the numbers are relatively prime. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factor of 23 is 23. The prime factors of 42 are 2, 3, and 7. There are no prime factors in common, so the numbers are relatively prime, meaning the greatest common factor is 1.
