2 x 2 x 5 = 20
Since there are infinitely many primes, there are infinitely many numbers that are products of 3 primes.
Sure. All composite numbers can be written as a product of primes. It shouldn't be tough to find a composite number that's the sum of three other composite numbers. Let's try 30. 2 x 3 x 5 = 30 Product of primes, check. 6 (2 x 3) + 10 (2 x 5) + 14 (2 x 7) = 30 Sum of three products of primes, check.
There are 9 prime numbers between 0 and 20: 1,2,3,5,7,11,13,17,19.
The primes are 23, 29, and 31.
The products of the primes are the composites.
20 as a product of primes = 2 * 2 * 5
10 = 2 x 5
24 = 23 × 3
2 x 2 x 5 = 20
Since there are infinitely many primes, there are infinitely many numbers that are products of 3 primes.
2*32*5
Sure. All composite numbers can be written as a product of primes. It shouldn't be tough to find a composite number that's the sum of three other composite numbers. Let's try 30. 2 x 3 x 5 = 30 Product of primes, check. 6 (2 x 3) + 10 (2 x 5) + 14 (2 x 7) = 30 Sum of three products of primes, check.
The odd primes less than 20 are: 3 5 7 11 13 17 19
There are 9 prime numbers between 0 and 20: 1,2,3,5,7,11,13,17,19.
It is 2:7
The primes are 23, 29, and 31.