What are the factors of 40?

Factors of 40

• Factors of 40: 1, 2, 4, 5, 8, 10, 20 and 40.
• Negative Factors of 40: -1, -2, -4, -5, -8, -10, -20 and -40.
• Prime Factors of 40: 2, 5.
• Prime Factorization of 40: 2 × 2 × 2 × 5 = 2 ³ × 5.
• Sum of Factors of 40: 90.

Similarly, What is the largest number of 30 and 40? Answer and Explanation: The greatest common factor of 30 and 40 is 10.

What are the factors for 21? 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 the factors of 20? Factors of 20

• Factors of 20: 1, 2, 4, 5, 10 and 20.
• Negative Factors of 20: -1, -2, -4, -5, -10 and -20.
• Prime Factors of 20: 2, 5.
• Prime Factorization of 20: 2 × 2 × 5 = 2 ² × 5.
• Sum of Factors of 20: 42.

Secondly What are multiples of 40? Multiples of 40

• First five multiples of 40: 40, 80, 120, 160 and 200.
• Prime Factorization of 40: 40 = 2 × 2 × 2 × 5 = 2 ³ × 5.

What is the biggest number of 40 and 48?

Answer: GCF of 40 and 48 is 8.

then What is the greatest common factor of 21 and 15? Answer: GCF of 15 and 21 is 3.

What is the GCF of 21 and 28? The GCF of 21 and 28 is 7. To calculate the greatest common factor (GCF) of 21 and 28, we need to factor each number (factors of 21 = 1, 3, 7, 21; factors of 28 = 1, 2, 4, 7, 14, 28) and choose the greatest factor that exactly divides both 21 and 28, i.e., 7.

What is the largest and smallest factor of 21?

The factors of 21 are 1, 3, 7 and 21.

What are the multiples 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.

How do you make 21?

We know that 1 multiplies with 21 to make 21, so they are both factors. 2 is not a factor of 21, because we cannot multiply it with another whole number to make 21.3 is a factor of 21, because it multiplies with 7 to make 21. Therefore the factors of 21 are 1, 3, 7 and 21.

How many factors does 43 have? 43 has only two factors and they are 1 and 43. The number 43 is a prime number.

What number between 30 and 40 has only one and itself as factors?

The prime numbers between 30 and 40 are: 31 and 37.

Is 20 a prime number?

What are the prime numbers? There are 8 prime numbers under 20: 2, 3, 5, 7, 11, 13, 17 and 19. The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29.

What is the GCF of 40? The GCF of 40 and 48 is 8. To calculate the GCF (Greatest Common Factor) of 40 and 48, we need to factor each number (factors of 40 = 1, 2, 4, 5, 8, 10, 20, 40; factors of 48 = 1, 2, 3, 4, 6, 8, 12, 16, 24, 48) and choose the greatest factor that exactly divides both 40 and 48, i.e., 8.

What two numbers make 40? The positive pair factors of 40 are (1, 40), (2, 20), (4, 10), and (5, 8).

What is the GCF of 20?

The prime factors of 20 are 2 x 2 x 5. 9 and 20 have no prime factors in common. The greatest common factor is 1.

How many factors are there in 20? The factors of 20 are 1, 2, 4, 5, 10, 20. Therefore, 20 has 6 factors.

What is the greatest common factor of 22 and 44?

GCF of 22 and 44 by Listing Common Factors

There are 4 common factors of 22 and 44, that are 1, 2, 11, and 22. Therefore, the greatest common factor of 22 and 44 is 22.

What are the factors of 21? 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.

How do you find the greatest common factor?

To find the GCF of a set of numbers, list all the factors of each number. The greatest factor appearing on every list is the GCF. For example, to find the GCF of 6 and 15, first list all the factors of each number. Because 3 is the greatest factor that appears on both lists, 3 is the GCF of 6 and 15.

What is the greatest common factor of 30 and 42? The GCF of 30 and 42 is 6. To calculate the greatest common factor of 30 and 42, we need to factor each number (factors of 30 = 1, 2, 3, 5, 6, 10, 15, 30; factors of 42 = 1, 2, 3, 6, 7, 14, 21, 42) and choose the greatest factor that exactly divides both 30 and 42, i.e., 6.