Use a factor tree.
45
15,3
5,3,3
45 = 3*3*5
They are: 3 3 and 5
3 and 5
39 and 45 are not relatively prime because they have 3 as a common factor. Relatively prime numbers have no common factor greater than 1.
The greatest common factor of 8 and 45 is 1. The numbers 8 and 45 have no prime factors in common.
45 and 64 are not prime numbers because they both have more than two factors
Their only common factor is 1. They each have a repeated prime factor.
The least common factor of any set of numbers is 1.
The prime numbers between 45 and 60 are 47, 53, and 59. The common factors of 45 and 60 are 1, 3, 5, and 15. The greatest common factor of 45 and 60 is 15.
To find the GCF of two numbers, you first split them both into their prime factors. 45 = 3x3x5 60 = 2x2x3x5 The next step is to find the common prime factors. In this case, both numbers have one 3 as a factor, and both have one 5 as a factor. To get the greatest common factor, we find the product of these common prime factors: 5x3=15 Thus the greatest common factor of 45 and 60 is 15.
All numbers have factors. Some factors are prime numbers. A prime factor is a factor that is a prime number. A common prime factor is a prime factor that appears on the list of factors of two or more given numbers.
15 is a factor of 45, but it is not a prime number.
You do not. To have a greatest common factor, you need two or more numbers. A common factor is a factor that two or more number have in common. However, the prime factorization of all the numbers will help you find the greatest common factor. The greatest common factor will be the prime factors they have in common multiplied together. Example: The prime factors of 45 are 3, 3, and 5. The prime factors of 60 are 2, 2, 3, and 5. The common prime factors are 3 and 5, so the greatest common factor is 3 x 5 = 15.