What are the prime factors of 81?

What are the prime factors of 81?

Factors of 81

• Factors of 81: 1, 3, 9, 27, 81.
• Negative Factors of 81: -1, -3, -9, -27 and -81.
• Prime Factorization of 81: 34 or 3 × 3 × 3 × 3.

What are the 4 factors of 10?

The factors of 10 are 1, 2, 5, and 10. You can also look at this the other way around: if you can multiply two whole numbers to create a third number, those two numbers are factors of the third. 2 x 5 = 10, so 2 and 5 are factors of 10. 1 x 10 = 10, so 1 and 10 are also factors of 10.

What factors of 15 are also factors of 20?

For 15 and 20 those factors look like this:

• Factors for 15: 1, 3, 5, and 15.
• Factors for 20: 1, 2, 4, 5, 10, and 20.

What are common factors?

A common factor is a number that can be divided into two different numbers, without leaving a remainder. Often numbers can share more than one common factor. It is possible to find the common factors of more than two numbers.

What are the common factors of 25?

The factors of 25 are 1, 5, and 25. The common factors of 20 and 25 are 1 and 5. Example: What are the common factors of 15 and 30?

What are factors of 21?

Factors of 21: 1, 3, 7, 21. Factors of 22: 1, 2, 11, 22.

What are the factors of 27?

The factors of 27 are 1, 3, 9, and 27, so it is not prime. The only even prime number is 2; thereafter, any even number may be divided by 2. The numbers 0 and 1 are not prime numbers.

What are the prime factors of 27?

So, the prime factorisation of 27 is 3 × 3 × 3 or 33, where 3 is a prime number.

What are the prime factors of 33?

Factors of 33

• Factors of 33: 1, 3, 11, and 33.
• Prime Factorization of 33: 33 = 3 × 11.

What are the prime factors of 90?

Prime Factors of 90

• Now, we know 5 is a prime number and it has only two factors; 1 and 5. Therefore, we cannot continue with the division method further.
• So, the prime factors of 90 are 2 × 3 × 3 × 5 or 2 × 32 × 5, where 2, 3 and 5 are the prime numbers.

What are the prime factors of 126?

Factors of 126

• Factors of 126: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126.
• Prime Factorization of 126: 2 × 3 × 3 × 7.

How many positive factors of 120 are there?

16 positive factors

What are the prime factors of 200?

As we use prime factorization for 200, we get 2 × 2 × 2 × 5 × 5 = 200. So, the only prime factors of 200 are 2 and 5.