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What number is it has 90 as a factor thre number is prime 21 is the multiple of the number?
If 21 is a multiple of the number, the number cannot have 90 as a factor.
What is the composite number for 21?
The only composite factor of 21 is 21.
Why is 21 the greatest common factor in 21 and 63?
Because 21 is a factor of 63. 21 is the greatest factor of 21. A larger number doesn't exist.
Is 21 a factor of 24?
No 21 is not a factor of 24. In order for a number to be a factor of another number, x number times n number must equal the number you are trying to factor. Below is a self made image that explains factoring and shows you how to factor 24.
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.
What is the factor tree of 21?
3x7=21 3 and 7 are prime numbers, so 3x7 is the factor tree of the number 21.
Is 21 a factor of a prime number?
No. The only factors of a prime number are 1 and itself. The only way that 21 could be a factor of a prime number is if it were a prime number, but it is not because 21 is also divisible by 3 and 7.
What number has the most factor out of 19 21 23 and 25?
21
How do you use a factor tree with using the number 21?
21 3,7
What is a prime number for 12 and 21?
3 is a prime factor of 12 and of 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.
Which number is a factor of 21 an also a prime number?
They are: 3 and 7
