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4 factors they are 1,3,7 and 21
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What are all of the factors for the number 21?
The factors of 21 are: 1, 3, 7, 21.
How many factor pairs does 21 have?
The factor pairs of 21 are:1, 213, 7Therefore, the number 21 has two pairs of positive integer factors.
Is 21 a prime or composite number?
21 is a Composite Number. A prime number is a whole number that only has two factors which are itself and one. A composite number has factors in addition to one and itself. 21 is divisible by 3 and 7.
What number s are?
The factors of 21 are 1, 3, 7, and 21. The only factor of 21 that is a composite number is 21.
How many factors does 21 have?
Four factors.
How many factors has the number 21?
The factors of 21 are :1,3,7,21
What number has more factors than 21?
The number 21 has only four factors: 1, 3, 7, and 21. Many number have more than four factors. Among them are 1x2x3x4x5 = 120.
What is the of 21?
A composite number is a number that has more than two factors. The factors of 21 are 1, 3, 7, and 21. Therefore, 21 is a composite number.
What are the proper factors of the number 21?
The factors of 21 are: 1, 3, 7, 21.
What are all of the factors for the number 21?
The factors of 21 are: 1, 3, 7, 21.
What is the composite of 21?
A composite number is a number that has more than two factors. The factors of 21 are 1, 3, 7, and 21. Therefore, 21 is a composite number.
Is there a prime number that is a multiple of 21?
No, it is not possible. Every multiple of 21 is a composite number. 21 is a composite number and its factors are 1, 3, 7 and 21(4 factors). Any multiple of 21 must have all the factors of 21. So, every multiple of 21 has at least 4 factors. And a prime number has only two factors so, any multiple of 21 can't be prime.
The factors of a number are 1 3 7 and 21 what is the number?
21
What is a number that has exactly eight factors including 21 351 and itself?
There cannot be any. If the number has 21 and 351 as factors then it already has 16 factors.
What are the common factors number 21?
The factors of 21 are 1, 3, 7 and 21. For them to be common, they need to be compared to another set of factors.
What are common factors with a given number of 21?
The factors of 21 are 1, 3, 7 and 21. To be common, they need to be compared to another set of factors.
How many factor pairs does 21 have?
The factor pairs of 21 are:1, 213, 7Therefore, the number 21 has two pairs of positive integer factors.
