When two or more numbers have one or more of the same primes as factors, those prime factors are called common prime factors. For example, the prime factors of 6 are 2 and 3, and the prime factors of 21 are 3 and 7, so 3 is a common prime factor of 6 and 21.
The prime factors of 18 are 2, 3, and 3. The prime factors of 70 are 2, 5, and 7. The prime factors that 18 and 70 have in common are a single 2.
There are no common factors between these values since 11 is prime and 20 is composite. Then, there are no common prime factors between these values.
The Prime Factors of 60 are 2, 3, 5The Prime Factors of 50 are 2, 5
If there are no prime factors in common, the GCF is 1.
Least common, most likely you mean lowest common multiple? If it is lowest common multiple (LCM) then it is 75. This can be worked out from the prime factors excluding duplicates where the prime factors are the same. I.E. 3*5*5 = 75 In this case there are no common prime factors so you could just as easily do 3*25 Hope this helps
They have the prime factors 2 and 5 in common.
19 and 90 have no common prime factors.
81 and 200 have no common prime factors.
The prime factors of 80 are 2 and 5. For them to be common, they need to be compared to another set of prime factors.
The prime factors of 36 are 2 and 3. To be common, they need to be compared to another set of prime factors.
The prime factors of 18 are 2, 3, and 3. The prime factors of 90 are 2, 3, 3, and 5. The prime factors they have in common are 2, 3, and 3. Since 18 is a factor of 90, its prime factors will be the prime factors that the two numbers have in common.
2 and 3 are the only common prime factors
The common prime factors are 2 and 3
The prime factors of 110 are 2, 5 and 11. For them to be common, they need to be compared to another set of prime factors.
There are infinitely many prime factors.
You mean prime factors?
When used as in "prime number" or "prime factor", it means that the number has exactly 2 factors. For example: 17 has only the factors 1 and 17, so it is prime. 14 has the factors 1, 2, 7, and 14, so it is not prime. When used as in "relatively prime", it means that two or more numbers do not have any common factors other than 1. For example: 3 and 4 do not have any common factors other than 1, so they are relatively prime. 6 and 10 have 1 and 2 as common factors, so they are not relatively prime.