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How do you write 15 as a product of primes?
5*3
If you had 30 single socks how many pairs could you make?
Since one pair of sox is 2, and you have 30, you can have 15 pairs. 30 divided by 2 = 15.
Is 3 times 5 the only factor of 15?
The factors of 15 are 1, 3, 5, 15. There are two factor pairs.
Which pairs of factors of 30 has a sum of - 17?
13
What times what equals 15?
The pairs of positive factors which multiply together to equal 15 are: 1 x 15 = 15 3 x 5 = 15
All co primes twin primes. True or false?
False. Co-primes are not the same as twin primes.Co-primes are any numbers having no common factorsother than 1. Examples of co-primes are 8 and 9 or 15 and 32.Twin primes are pairs of prime numbers exactly 2 apart such as 11 and 13 or 659 and 661.
What are the twin primes numbers between 15 through 35?
17,19 29,31
13 and 15 are twin prime?
13 and 15 are not twin primes because of the two, only 13 is prime (a number that is only divisible by itself and 1). 15 is not prime because it is divisible by more than itself and 1. 15 is also divisible by 3 and 5 (3 x 5 = 15).
How many twin prime numbers are there between 1 and 100?
The 15 twin prime numbers between 1 and 100 are in 8 pairs. The twin prime pairs are (3, 5), (5, 7), (11, 13), (17, 19), (29, 31), (41, 43), (59, 61), and (71, 73).
What is your number your number is a multiple of 5 and is less than 50 your number is between a pair of twin primes your number has exactly 8 factors?
It's a multiple of 5, a multiple of 6 (since it's between twin primes), and less than 50. The only possibility is 30. To check: The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30
What is 15 as the sum of two primes?
It is: 2+13 = 15
Is 15 and 16 are primes or composite?
15 and 16 are both composite numbers
How do you write 15 as a product of primes?
5*3
What is the first prime which can be the some of free different primes?
Are you asking The first prime that is the sum of three primes? I'll help. 2,3,5 are the first 3. the sum is 10. Not prime. now try 3,5,7. 15. Not prime. 5,7,11. 5,7,11 work, the sum is 23, which is a prime, not divisible by 2,3,4,5,6,7,8,9, so on. So the Three Primes are 5 7 11. The sum is 23.
What are the factor pairs of 15?
The factor pairs of 15 are 1 x 15 and 3 x 5.
What primes make 15?
As a product of its prime factors: 3*5 = 15 or 3+5+7 = 15
What 6 people how may pairs can there be?
15 pairs
