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JordanThe common factors of 3 and 7 are numbers that can evenly divide both 3 and 7 without leaving a remainder. In this case, the only common factor of 3 and 7 is 1, as 3 and 7 are both prime numbers and have no other factors besides 1 and themselves. Therefore, the common factors of 3 and 7 are {1}.
A factor is a divisor - a number that will evenly divide into another number.
One way to determine the common factors (and 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 7 are 1 and 7.
The only common factor is 1.
In a case like this, since both numbers are prime, there will only be one common factor - the number 1.
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What are the common factors of 84 and 105?
The common factors of 84 and 105 are: 1, 3, 7, and 21The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105.The common factors are: 1, 3, 7, 21
Common factors of 6 and 21?
The factors of 6 are 1, 2, 3, and 6. The factors of 21 are 1, 3, 7, and 21. The common factors of 6 and 21 are 1 and 3, and the GCF is 3.
What are the common factors of 126?
There are no common factors of 126 because there cannot be common factors without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The factors of 126 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, and 126. The prime factors of 126 are 2, 3, 3, and 7. Examples: The common factors of 4 and 126 are 1 and 2. The common factors of 36 and 126 are 1, 2, 3, 6, 9, and 18. The common factors of 49 and 126 are 1 and 7. The common factors of 12, 30, and 126 are 1, 2, 3, and 6.
What are all the common factors of 42 and 273?
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42The factors of 273 are: 1, 3, 7, 13, 21, 39, 91, 273The common factors are: 1, 3, 7, 21
What are the factors and prime factors of 21?
21 is a composite number; it has factors other than 1 and itself. It is not a prime number.The 4 factors of 21 are 1, 3, 7, and 21.The factor pairs of 21 are 1 x 21 and 3 x 7.The proper factors of 21 are 1, 3, and 7 or,if the definition you are using excludes 1, the are 3 and 7.The prime factors of 21 are 3 and 7.The 2 distinct prime factors (listing each prime factor only once) are 3 and 7.The prime factorization of 21 is 3 x 7.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.
