The factors of 21 are
1, 3, 7 and 21
.
How do you write 21 divided by 3?
When you divide 21 by 3 you get
7
. We can write this as follows: 21 / 3 = 7.
What are all the factors of 21?
- Factors of 21: 1, 3, 7 and 21.
- Negative Factors of 21: -1, -3, -7 and -21.
- Prime Factors of 21: 3, 7.
- Prime Factorization of 21: 3 × 7 = 3 × 7.
- Sum of Factors of 21: 32.
What are not factors of 21?
21 is a composite number. 21 = 1 x 21 or 3 x 7. Factors of 21: 1, 3, 7, 21. Prime factorization: 21 = 3 x 7.
What can divide into 20?
The factors of 20 are
1, 2, 4, 5, 10, 20
.
What is the common multiple of 21?
The first 10 multiples of 21 are, 21, 42, 63, 84, 105, 126, 147, 168, 189 and 210. Each multiple of 21 is entirely divisible by
7
and occurs in the table of 7, hence, each multiple of 21 is also the multiple of 7.
What is the HCF of 21?
Factors of 21 (Twenty one) = 1, 3, 7and 21. Factors of 35 (Thirty five) = 1, 5, 7 and 35. Therefore, common factor of 21 (Twenty one) and 35 (Thirty five) = 1 and 7. Highest common factor (H.C.F) of 21 (Twenty one) and 35 (Thirty five)
= 7
.
How do you show 20 divided by 5?
Using a calculator, if you typed in 20 divided by 5, you’d get
4
. You could also express 20/5 as a mixed fraction: 4 0/5.
What can 42 be divided by?
Factors of 42 By Division Method
We see that when 42 is divided by
1, 2, 3, 6, 7, 14, 21, and 42
, it leaves no remainder. Hence, they are factors of 42.
How do you solve 7 divided by 3?
Put 7 in the numerator and 3 in the denominator and it can be written as 7/3. Divide 7 by 3. 7 divided by 3 gives
quotient 2
and leaves a remainder 1. 7 divided by 3 further can be written in mixed fraction form which is 21⁄3.
What are the factors of 15 and 21?
GCF of 15 and 21 is the largest possible number that divides 15 and 21 exactly without any remainder. The factors of 15 and 21 are
1, 3, 5, 15 and 1, 3, 7, 21
respectively. There are 3 commonly used methods to find the GCF of 15 and 21 – long division, Euclidean algorithm, and prime factorization.
What are the common factors of 7 and 21?
There are 2 common factors of 7 and 21, that are
1 and 7
. Therefore, the greatest common factor of 7 and 21 is 7.
What is the HCF of 21 and 29?
Answer: HCF of 21 and 29 is
1
.
What are factors of 18?
Factors of a number are the numbers that divide the given number exactly without any remainder. According to the definition of factors, the factors of 18 are
1, 2, 3, 6, 9, and 18.
What’s the prime factorization of 20?
The only prime factors of 20 are
2 and 5
. You can also get these factors with the use of our factor calculator.
What are the multiples of 5?
Multiples of five are as follows
5, 10, 15, 20, 25, 30, 35, 40
,… Find the Multiples of the Whole Number 7. Multiples of seven are as follows 7, 14, 21, 28, 35, 42, 49, 56,…
