1, 3, 7 and 21.
The factors of 21 are: 1, 3, 7, 21 | The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
As factors, 1 and -1
Factros of 21: 1, 3, 7, 21 Factors of 32: 1, 2, 4, 8, 16, 32
1,2 1,2,4
Oh, dude, factors are like the friends that multiply together to give you the number you're looking for. So, for 21, you've got 1, 3, 7, and 21 hanging out together. Then, for 30, you've got 1, 2, 3, 5, 6, 10, 15, and 30 chilling. And finally, for 44, you've got 1, 2, 4, 11, 22, and 44 just doing their factor thing.
4 factors they are 1,3,7 and 21
1, 2, 4 1, 3, 7, 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 21 are: 1, 3, 7, 21 | The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
The factors of 21 are: 1, 3, 7, 21. The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56.
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)
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
As factors, 1 and -1
25
Just 1.
The factors of 4 are 1, 2, 4 The factors of 3 are 1, 3 The factors of 2 are 1, 2
As 4 & 21 have no factors in common, gcf=1