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18 has prime factors 3 & 2 whereas 21 has prime factors 3 & 7.

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Q: What are the prime factors for 18 and 21?
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Related questions

What are the factors and prime factors of 18 and 21?

The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.


Prime factorization of 18 and 21?

The factors of 18 are: 1 2 3 6 9 18 The prime factors are: 2 x 3 x 3 and The factors of 21 are: 1 3 7 21 The prime factors are: 3 x 7


What are the factors and prime factors of 21 and 36?

The factors of 21 are 1, 3, 7, 21. 3 and 7 are prime. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36. 2 and 3 are prime.


What is the least common multiple of 10 18 21 by using by using prime factors?

The Least Common Multiple of 10, 18, 21 is 630.


What are the factors and prime factors of 21 in exponet form?

The factors of 21 are: 1 3 7 21 The prime factors are: 3 and 7


What are the prime factors and prime factors of 21?

1, 3, 7, 21 3 and 7 are prime.


What are prime numbers of 21?

factors of 21: 3, 7 prime factors of 21: 3, 7


What is the factors and prime factors of 21?

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


Prime factors of 21?

The prime factors of 21 are 3,7.


What are factors of 18 that are prime numbers?

Prime factors of 18 are 2 and 3.


What is the prime factors of 18 and 15?

Prime factors of 18 are 2 and 3 Prime factors of 15 are 3 and 5


How can you write 21 as a product of its prime factors?

As a product of its prime factors: 3*7 = 21