What is the LCM of 21 and 5?

105
The LCM of 21 and 5 is 105.

What is the GCF of 5?

Factors of 5 = 1, 5.

What are the factors of 21 GCF?

Factors of 21 are integers that can be divided evenly into 21. It has a total of 4 factors of which 21 is the biggest factor and the positive factors of 21 are 1, 3, 7, and 21.

What is the greatest common factor of 5 35 21?

Frequently Asked Questions on GCF of 5, 35, 21 Answer: GCF of 5, 35, 21 is 1.

What is the GCF of 5 and 20?

Answer: GCF of 5 and 20 is 5.

How do you do GCF?

The greatest common factor is the greatest factor that divides both numbers. To find the greatest common factor, first list the prime factors of each number. 18 and 24 share one 2 and one 3 in common. We multiply them to get the GCF, so 2 * 3 = 6 is the GCF of 18 and 24.

What are 5 factors of 21?

Factors of 21: 1, 3, 7, 21. Factors of 22: 1, 2, 11, 22. Factors of 23: 1, 23. Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24.

What are the factors of 5?

Factors of 5 are the natural numbers that can divide the actual number, evenly. 5 is the third prime number when arranged in ascending order. Therefore, 5 will have only two factors, 1 and 5. If we divide 5 by any other integer, then the remainder will be a non-zero positive integer.

How do you solve for GCF?

How do you factor out the GCF?

Summary

  1. To recognize a greatest common factor, find a greatest common factor for the numbers in the expression and then consider each variable or expression separately.
  2. To factor out a GCF, write the GCF outside the parentheses and divide each one of the terms by the GCF in the parentheses.

How do you do prime factorization?

Prime Factorization Methods

  1. Step 1: Divide the given number by the smallest prime number.
  2. Step 2: Again, divide the quotient by the smallest prime number.
  3. Step 3: Repeat the process, until the quotient becomes 1.
  4. Step 4: Finally, multiply all the prime factors.

What is the GCF of 9 and 21?

3
The GCF of 9 and 21 is 3. To calculate the greatest common factor (GCF) of 9 and 21, we need to factor each number (factors of 9 = 1, 3, 9; factors of 21 = 1, 3, 7, 21) and choose the greatest factor that exactly divides both 9 and 21, i.e., 3.

What are the first 5 multiples of 21?

The multiples of 21 are 21, 42, 63, 84, 105, 126, 147, 168, 189, 210, ….

What is the factor of 5?

1 and 5
Solution: The factors of 5 are 1 and 5.

What are the factors of 21?

The factors of 21 are 1, 3, 7 and 21. Factor pairs of the number 21 are the numbers that result in the original number multiplying them together. To find the factors of a number, 21, we can use the factorization method.