# prime number  16 results

prime number - a natural number greater than 1 that is not a product of two smaller natural numbers.

1 Die Roll
Free 1 Die Roll Calculator - Calculates the probability for the following events in the roll of one fair dice (1 dice roll calculator or 1 die roll calculator):
* Probability of any total from (1-6)
* Probability of the total being less than, less than or equal to, greater than, or greater than or equal to (1-6)
* The total being even
* The total being odd
* The total being a prime number
* The total being a non-prime number
* Rolling a list of numbers i.e. (2,5,6)
* Simulate (n) Monte Carlo die simulations.
1 die calculator

2 dice roll
Free 2 dice roll Calculator - Calculates the probability for the following events in a pair of fair dice rolls:
* Probability of any sum from (2-12)
* Probability of the sum being less than, less than or equal to, greater than, or greater than or equal to (2-12)
* The sum being even
* The sum being odd
* The sum being a prime number
* The sum being a non-prime number
* Rolling a list of numbers i.e. (2,5,6,12)
* Simulate (n) Monte Carlo two die simulations. 2 dice calculator

A = himpunan bilangan prima yang kurang dari 20. Banyaknya anggota himpunan A adalah …
A = himpunan bilangan prima yang kurang dari 20. Banyaknya anggota himpunan A adalah … [URL='https://www.mathcelebrity.com/prime-numbers.php?num=8&pl=Prime+Numbers']Dengan menggunakan kalkulator nombor perdana, kami mendapat[/URL]: [B]A = {2, 3, 5, 7, 11, 13, 17, 19}[/B]

A natural number greater than 1 has only itself and 1 as factors is called
A natural number greater than 1 has only itself and 1 as factors is called a [B]prime number.[/B]

A pair of numbers has an HCF (Highest Common Factor) of 3, and an LCM (Lowest Common Multiple) of
A pair of numbers has an HCF (Highest Common Factor) of 3, and an LCM (Lowest Common Multiple) of 45 . If one of the numbers in the pair is 15 , what is the other number? [LIST=1] [*]Prime Factorization for 15 is 3 * 5 [*]Prime Factorization for 9 is 3 * 3 [*]LCM of (9, 15) = 35 [/LIST] [URL='https://www.mathcelebrity.com/gcflcm.php?num1=9&num2=15&num3=&pl=GCF+and+LCM']Check out this link here to see the details[/URL]

Erik is rolling two regular six-sided number cubes. What is the probability that he will roll an eve
Erik is rolling two regular six-sided number cubes. What is the probability that he will roll an even number on one cube and a prime number on the other? P(Even on first cube) = (2,4,6) / 6 total choices P(Even on first cube) = 3/6 P(Even on first cube) = 1/2 <-- [URL='https://www.mathcelebrity.com/fraction.php?frac1=3%2F6&frac2=3%2F8&pl=Simplify']Using our fraction simplify calculator[/URL] P(Prime on second cube) = (2,3,5) / 6 total choices P(Prime on second cube) = 3/6 P(Prime on second cube) = 1/2 <-- [URL='https://www.mathcelebrity.com/fraction.php?frac1=3%2F6&frac2=3%2F8&pl=Simplify']Using our fraction simplify calculator[/URL] Since each event is independent, we have: P(Even on the first cube, Prime on the second cube) = P(Even on the first cube) * P(Prime on the second cube) P(Even on the first cube, Prime on the second cube) = 1/2 * 1/2 P(Even on the first cube, Prime on the second cube) = [B]1/4[/B]

Factorization
Free Factorization Calculator - Given a positive integer, this calculates the following for that number:
1) Factor pairs and prime factorization and prime power decomposition
2) Factors and Proper Factors 3) Aliquot Sum

Fermats Little Theorem
Free Fermats Little Theorem Calculator - For any integer a and a prime number p, this demonstrates Fermats Little Theorem.

Greatest Common Factor and Least Common Multiple
Free Greatest Common Factor and Least Common Multiple Calculator - Given 2 or 3 numbers, the calculator determines the following:
* Greatest Common Factor (GCF) using Factor Pairs
* Rewrite Sum using the Distributive Property and factoring out the GCF
* Least Common Multiple (LCM) / Least Common Denominator (LCD) using Factor Pairs
* GCF using the method of Successive Division
* GCF using the Prime Factorization method
* Determine if the numbers are coprime and twin prime

How many of the numbers between 20 and 40 are prime numbers?
[SIZE=4]How many of the numbers between 20 and 40 are prime numbers? A) 3 B) 4 C) 5 D) 6 E) 7 Recall that a prime number is a number that only has itself and 1 as a divisor. [/SIZE] [LIST] [*][SIZE=4]Remove all the evens since the are divisible by 2 (20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40)[/SIZE] [*][SIZE=4]Remove all the remaining numbers divisible by 3 (21, 24, 27, 30, 33, 36, 39)[/SIZE] [*][SIZE=4]Remove all the remaining numbers divisible by 5 (25, 35)[/SIZE] [/LIST] [SIZE=4]We're left with ([B]23, 29, 31, 37[/B]) This is 4 numbers which is answer [B]B[/B][/SIZE]

if q is a whole number and q is a prime, and if 20q is divisible by 6, then q could be
A. 2 B. 3 C. 4 D. 5 E. 6 We have 3 conditions that all must be met: [LIST=1] [*]Whole number [*]Prime Number [*]20 * number is divisible by 6 [/LIST] [LIST] [*]The are [U]all[/U] whole numbers [*]One A, B, and D are prime, so we eliminate C and E [*]20(2) = 40 which is not divisible by 6 - Eliminate Answer A [*]20(5) = 100 which is not divisible by 6- Eliminate Answer D [*]20(3) = 60/6 = 10. [B]Our answer is B[/B] [/LIST] [B][MEDIA=youtube]EZ0pXijlCUc[/MEDIA][/B]

log5 = 0.699, log2 = 0.301. Use these values to evaluate log40
log5 = 0.699, log2 = 0.301. Use these values to evaluate log40. One of the logarithmic identities is: log(ab) = log(a) + log(b). Using the numbers 2 and 5, we somehow need to get to 40. [URL='http://www.mathcelebrity.com/factoriz.php?num=40&pl=Show+Factorization']List factors of 40[/URL]. On the link above, take a look at the bottom where it says prime factorization. We have: 40 = 2 x 2 x 2 x 5 Using our logarithmic identity, we have: log40 = log(2 x 2 x 2 x 5) Rewriting this using our identity, we have: log40 = log2 + log2 + log2 + log5 log40 = 0.301 + 0.301 + 0.301 + 0.699 log40 = [B]1.602 [MEDIA=youtube]qyG_Jkf9VDc[/MEDIA][/B]

Number Property
Free Number Property Calculator - This calculator determines if an integer you entered has any of the following properties:
* Even Numbers or Odd Numbers (Parity Function or even-odd numbers)
* Evil Numbers or Odious Numbers
* Perfect Numbers, Abundant Numbers, or Deficient Numbers
* Triangular Numbers
* Prime Numbers or Composite Numbers
* Automorphic (Curious)
* Undulating Numbers
* Square Numbers
* Cube Numbers
* Palindrome Numbers
* Repunit Numbers
* Apocalyptic Power
* Pentagonal
* Tetrahedral (Pyramidal)
* Narcissistic (Plus Perfect)
* Catalan
* Repunit

Prime Numbers
Free Prime Numbers Calculator - Shows up to 3000 prime numbers and a cumulative sum

Primitive Root
Free Primitive Root Calculator - Given a prime number p and a potential root of b, this determines if b is a primitive root of p.

Sieve of Eratosthenes
Free Sieve of Eratosthenes Calculator - Using the Sieve of Eratosthenes algorithm, this will show how many prime numbers are less than a number (n).