The sum of the first four prime numbers is 17.
17 is the only prime number that is the sum of four consecutive prime numbers. 2 + 3 + 5 + 7 = 17
The prime factors must be less than 17 since four of them sum to 17. The possibilities are 2, 3, 5, 7, 11, and 13. Because there are four prime factors, since four odd numbers would add up to an even number, one of the prime factors must be even. The only even prime factor is 2, so it must be one of the prime factors. Now, we need the remaining three prime factors that must sum to 17 - 2 = 15. If the prime factors are different, the only three that add to 15 are 3, 5, and 7. So, the four prime factors would be 2, 3, 5, and 7, which means the number is 2 x 3 x 5 x 7 = 210. If the prime factors do not need to be different, we have more possibilities: 2, 5, 5, and 5: 250 2, 2, 2, and 11: 88
It is: 3+17 = 20
The smallest four prime numbers are 2, 3, 5, 7, and their sum happens to be a prime.
The sum of the first four prime numbers is 17.
The sum of the first four prime numbers is 17.
17 is the only prime number that is the sum of four consecutive prime numbers. 2 + 3 + 5 + 7 = 17
The prime factors must be less than 17 since four of them sum to 17. The possibilities are 2, 3, 5, 7, 11, and 13. Because there are four prime factors, since four odd numbers would add up to an even number, one of the prime factors must be even. The only even prime factor is 2, so it must be one of the prime factors. Now, we need the remaining three prime factors that must sum to 17 - 2 = 15. If the prime factors are different, the only three that add to 15 are 3, 5, and 7. So, the four prime factors would be 2, 3, 5, and 7, which means the number is 2 x 3 x 5 x 7 = 210. If the prime factors do not need to be different, we have more possibilities: 2, 5, 5, and 5: 250 2, 2, 2, and 11: 88
The sum is 17.
It is: 3+17 = 20
The smallest four prime numbers are 2, 3, 5, 7, and their sum happens to be a prime.
The prime factors of 34 are 2 and 17, and 2 + 17 = 19.
41 is prime, and 51 factors to 3 * 17. the factors of the sum is 7 and 13, the factors of the product are 41, 3 and 17.
3315 has four prime factors they are 3, 5, 13, and 17
17
5 + 7 + 11 + 13 + 17 = 53