The LCM or least common multiple of 3 and 5 is 15.The GCF or greatest common factor of 3 and 5 is 1.
The greatest common factor of several numbers cannot be larger than the greatest common factor of any pair of the numbers. If you realize that the greatest common factor of 3 and 5 is 1, the greatest common factor of all the numbers must be 1. Another way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 3 are 1 and 3. The factors of 5 are 1 and 5. The factors of 8 are 1, 2, 4, and 8. The factors of 10 are 1, 2, 5, and 10. The only common factor is 1. Therefore, the greatest common factor is 1. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factor of 3 is 3. The prime factor of 5 is 5. The prime factors of 8 are 2, 2, and 2. The prime factors of 10 are 2 and 5. There are no prime factors in common, so the greatest common factor is 1.
The greatest common factor of 15 and 25 is 5 and so 5 divided into both numbers cancels them down to 3 and 5
The prime factors are: 15 = 3 * 5 35 = 5 * 7 75 = 3 * 5 * 5 So the greatest common factor is 5.
They can be. 5 and 1 are common factors of 10 and 20
They are: 3 3 and 5
3 and 5 are both prime numbers and 1 is their only common factor.
Multiples of 30
3 and 5
3, 5, 7, 9+
3 and 5
Assuming you want to multiply 3 x 5, each of these numbers is called a factor.
30 and 60
3 and 5.
All of them are prime numbers
Use a factor tree. 45 15,3 5,3,3
3, 9, 27, 81, 243