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What 2 numbers add up to 38 but when multiplied equal 230?
The numbers are: (19+square root of 131) and (19-square root of 131)
What are digital roots of prime numbers?
To find the digital root of a number, repeatedly add its digits (called "digit sum") until you're left with a 1-digit number, 1 thru 9; e.g., 19 (a prime number) = 1+9 = 10 = 1+0 = 1, i.e., the digital root of 19 is 1 [sometimes expressed as 19=dr(1)]. Here's one more example, 89 (a prime) = 8+9 = 17 = 1+7 = dr(8).
What is the product of the prime numbers between 15 and 20?
The prime numbers between 15 and 20 are 17 and 19. 17*19 = 323
Which of these numbers is composite 11 13 15 17 19?
It is 15
What is the median of the numbers 15 18 17 15 19 11 25?
15
What 2 numbers add up to 38 but when multiplied equal 230?
The numbers are: (19+square root of 131) and (19-square root of 131)
Whole numbers between 15 and 19?
They are 15, 16, 17, 18 & 19.
What are digital roots of prime numbers?
To find the digital root of a number, repeatedly add its digits (called "digit sum") until you're left with a 1-digit number, 1 thru 9; e.g., 19 (a prime number) = 1+9 = 10 = 1+0 = 1, i.e., the digital root of 19 is 1 [sometimes expressed as 19=dr(1)]. Here's one more example, 89 (a prime) = 8+9 = 17 = 1+7 = dr(8).
What are the prime numbers between 15 and 25?
The prime numbers between 15 and 25 are- 17, 19 and 23.They are: 17, 19 and 23They are: 17 19 and 23
What is the product of the prime numbers between 15 and 20?
The prime numbers between 15 and 20 are 17 and 19. 17*19 = 323
What numbers does the square root of 355 fall between?
They are: 18 and 19
What are all the prime numbers between 15 and 30?
The prime numbers between 15 and 30 are: 17 19 23 29.
Which of these numbers is composite 11 13 15 17 19?
It is 15
What is the median of the numbers 15 18 17 15 19 11 25?
15
Is the square root of 19 a rational number?
No. 19 is a prime number, and all prime numbers have irrational roots.
Which of these numbers is not composite 15 18 19 20 21?
19. It is prime.
What two whole numbers are closest to the square root of 19?
4x4=16, and 5x5=25, so 4 and 5 are the whole numbers closest to the square root of 19. [And incidentally of all the square roots of all the whole numbers between 16 and 25.]
