A factor is a number that can evenly be divided into another number. Any number can be divided by one and itself. Numbers that can only be divided by one and themselves are called prime numbers. The number one and the number itself are factors of the number.Hence its factors are 1 and 3 itself.
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Common factors of 3 and 10 are 30, 60, 90 etc.
Method to find common multiples:
1- Find the L.C.M. of 3 and 10.
L.C.M. of 3 and 10 is 30.
2- Multiply L.C.M. with any natural number to get common multiple.
Common multiples are 30x1 = 30, 30x2 = 60, 30x3 = 90 etc.
The term common factors specifically refers to the factors shared by two or more numbers.
The common factor for the number 3 and 8 is 1. Since 3 is a Prime number it is divided by 1 and itself.
The factors of 3 are 1 and 3. For them to be common, they need to be compared to another set of factors.
The factors of 1 are:1The factors of 3 are:1, 3The factors of 9 are:1, 3, 9The common factor is:1
The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.
The common factors are: 1, 3
there are only 2 factors because 3 is a prime number: the factors are 1 and 3
Factors of 6 1,2,3,6 Factors of 3 1,3 (this mean that 3 is a prime number)