1. Multiples of 3 and 5 2. Even Fibonacci numbers
... example, the smallest number that is divisible by the integers 3 and 2 is 6 = 3 × 2. Naively, then, one might be tempted to construct the number in question by forming the product of all integers up to and including 20. The reason this fails is clear: if this number is divisible by 4 and 2, isn’t it ...
... example, the smallest number that is divisible by the integers 3 and 2 is 6 = 3 × 2. Naively, then, one might be tempted to construct the number in question by forming the product of all integers up to and including 20. The reason this fails is clear: if this number is divisible by 4 and 2, isn’t it ...
Math 107A Name: Sec # HW #13 December 8, 2010 Score: 1. (a
... and 9. So 9 has exactly three factors. (c) Find a three digit number that has exactly three factors. Using the same strategy we want a number that is equal to a prime squared. We want to get a three digit number, so 112 = 121 will work. 121 is a three digit number and its only divisors are 1, 11, an ...
... and 9. So 9 has exactly three factors. (c) Find a three digit number that has exactly three factors. Using the same strategy we want a number that is equal to a prime squared. We want to get a three digit number, so 112 = 121 will work. 121 is a three digit number and its only divisors are 1, 11, an ...
3 - MindMeister
... ? is at least 1. Non-negative integer: An integer that ? is at least 0. Perfect square: For integers, just ?a square number. Divisor: Another word ? for factor. Composite: The opposite of prime: ? has other factors. Distinct integers: Numbers which ?are different! ...
... ? is at least 1. Non-negative integer: An integer that ? is at least 0. Perfect square: For integers, just ?a square number. Divisor: Another word ? for factor. Composite: The opposite of prime: ? has other factors. Distinct integers: Numbers which ?are different! ...
May 2008 Lawrence Xie: Prime Probability through Parity Page 1 of
... Prime Probability Paradox through Parity, by: Lawrence Xie Introduction Prime numbers are integers that only have factors of one and itself. All other integers above two are composite. In many ways, prime numbers are the building blocks for all natural numbers. Although the simple definition of a pr ...
... Prime Probability Paradox through Parity, by: Lawrence Xie Introduction Prime numbers are integers that only have factors of one and itself. All other integers above two are composite. In many ways, prime numbers are the building blocks for all natural numbers. Although the simple definition of a pr ...
Recent progress in additive prime number theory
... instance, at least one of n, n + 1 has to be even, which makes it hard for both to be prime; similarly, at least one of n, n + 2, n + 4 has to be divisible by 3. Obstructions at infinity If the linear forms can be positive only finitely often, then this of course prevents having more than a finite n ...
... instance, at least one of n, n + 1 has to be even, which makes it hard for both to be prime; similarly, at least one of n, n + 2, n + 4 has to be divisible by 3. Obstructions at infinity If the linear forms can be positive only finitely often, then this of course prevents having more than a finite n ...
