Q: What is the prime factors of 18 and 15?

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Two prime factors.

factors of 18: 1, 2, 3, 6, 9 and 18 prime factors of 18: 2, 3 composite factors of 18: 6, 9, 18

18 is not a prime number so no number can have 18 as a prime factor.

The prime factors of 18 are 2 and 3.To find the prime factors of 18, find any two factors of 18, such as 2 and 9.2 X 9 = 18Since 2 is a prime number, find two factors of 9, but don't drop the 2.2 X 3 X 3 = 18.Since 2 and 3 are both prime numbers, 2 X 3 X 3 is the prime factorization of 18.2 and 3 are prime.

The prime factors of 15 are: 3, 5

Related questions

The prime factors of 15 are 3 and 5. The prime factors of 18 are 2 and 3. The highest power of each of these is 1.

The factors of 12 are: 1, 2, 3, 4, 6, and 12.The prime factors of 12 are: 2 and 3.The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.

The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.The factors of 39 are: 1, 3, 13, and 39.The prime factors of 39 are: 3 and 13.The factors of 45 are: 1, 3, 5, 9, 15, and 45.The prime factors of 45 are: 3 and 5.

Prime factors of 15: 3 and 5 Prime factors of 18: 2 and 3 squared So LCM: 2*3*3*5 = 90

Prime factors of 18 are 2 and 3.

The prime factors of 15 are 3 and 5.

13 is prime 14=2x7, 2 factors 15=3x5, 2 factors 16=24, 4 factors 17 is prime 18=2x32, 3 factors 19 is prime So the answer is 3 (14, 15 and 16)

The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, and 24.The prime factors of 24 are: 2 and 3.The factors of 45 are: 1, 3, 5, 9, 15, and 45.The prime factors of 45 are: 3 and 5.

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

The prime factors of 18 are 2, 3, and 3. The prime factors of 70 are 2, 5, and 7. The prime factors that 18 and 70 have in common are a single 2.

Factors of 15 are: 1 3 5 and 15 of which 3 and 5 are prime factors

The prime factors of 15 are: 3 and 5.The prime factors of 35 are: 5 and 7.