What is 28as a product of prime factors?
= 22 × 7
The prime factors of 28 can also be written as 28 = 22 × 7.
Is the number 509 prime or composite?
prime number
509 is a prime number from 501-600. 509 has 2 factors, 1 and 509. It is the 97th prime number, and the second prime number from 501-600.
What are the factors of 510?
510 is a composite number.
What can 509 be divided by?
Since 509 cannot be divided evenly by 2, 3, 5, 7, 11, 13, 17, or 19, we know that 509 is a prime number.
Is 79 a prime numbers?
79 is a prime number from 1-100. 79 has 2 factors, 1 and 79. It is the 22nd prime number, and the 22nd prime number from 1-100.
How do you find a factor of a number?
With the help of prime factorisation method, we can determine the prime factors of a number….Prime Factors of a Number.
| Steps | Prime factors | Division |
|---|---|---|
| Divide 144 by 2 | 2 | 144 ÷ 2=72 |
| Divide 72 by 2 | 2 | 72 ÷ 2 = 36 |
| Divide 36 by 2 | 2 | 36 ÷ 2 = 18 |
| Divide 18 by 2 | 2 | 18 ÷ 2 = 9 |
What is the prime factor of 510 and 92?
Prime factorization of 510 and 92 is (2 × 3 × 5 × 17) and (2 × 2 × 23) respectively. As visible, 510 and 92 have only one common prime factor i.e. 2. Hence, the HCF of 510 and 92 is 2.
What is the LCM of 510?
The product of all the prime numbers used for division is the LCM of 510 and 92. So, the LCM of 510 and 92 is 23460.
What is the prime factor of 12 and 18?
Prime factorization of 12 and 18 is (2 × 2 × 3) and (2 × 3 × 3) respectively. As visible, 12 and 18 have common prime factors.
What are the multiples of 12 and 18?
12, 24, 36, 48, 60, 72, 84, 96, 108, 12 ….. 18, 36, 54, 72, 90, 108, 126, 144, 162, 180 …. Hence, the first two common multiples of 12 and 18 are 36 and 72.
Why is 18 not a prime number?
No, 18 is not a prime number. The number 18 is divisible by 1, 2, 3, 6, 9, 18. For a number to be classified as a prime number, it should have exactly two factors. Since 18 has more than two factors, i.e. 1, 2, 3, 6, 9, 18, it is not a prime number.
What are the factors of 508?
The factors of 508 are 1, 2, 4, 127, 254, 508 and its negative factors are -1, -2, -4, -127, -254, -508.
How many integers between 2 and 17 even only can be the sum of two different prime numbers?
Correct answer: One is not a prime number, so only 8, 10, 12, 14, 16, and 18 can be the sum of two different prime numbers.