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How many factors does the number 21 have?
4 factors they are 1,3,7 and 21
What are the 4 factors 21?
1, 3, 7 and 21.
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.
What are the factors of 21 and40?
The factors of 21 are: 1, 3, 7, 21 | The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
What are the factors of 21 and 56?
The factors of 21 are: 1, 3, 7, 21. The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56.
Which of the numbers 19 21 23 and 25 has most factors?
21 has the most factors of the four numbers. 19 has 2 factors (1 and 19) 21 has 4 factors (1, 3, 7, 21) 23 has 2 factors (1, 23) 25 has 3 factors (1, 5, 25)
What are the factors for 21 and 84?
The factors of 21 are: 1, 3, 7, 21 The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
What are the common factors of 4 and 21?
Just 1.
What do -4 and -21 have in common?
As factors, 1 and -1
What are common factors of 4 and -21?
25
What are the factors of 3 4 and 2?
The factors of 4 are 1, 2, 4 The factors of 3 are 1, 3 The factors of 2 are 1, 2
What is the greatest common factor of 4 14 6 and 21?
As 4 & 21 have no factors in common, gcf=1
