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2. Divisibility rule - Wikipedia

   en.wikipedia.org/wiki/Divisibility_rule

   The basic rule for divisibility by 4 is that if the number formed by the last two digits in a number is divisible by 4, the original number is divisible by 4; [2] [3] this is because 100 is divisible by 4 and so adding hundreds, thousands, etc. is simply adding another number that is divisible by 4. If any number ends in a two digit number that ...

3. Table of divisors - Wikipedia

   en.wikipedia.org/wiki/Table_of_divisors

   Plot of the number of divisors of integers from 1 to 1000. Highly composite numbers are in bold and superior highly composite numbers are starred. ... 24, 33, 36, 44 ...

4. 360 (number) - Wikipedia

   en.wikipedia.org/wiki/360_(number)

   360 is divisible by the number of its divisors , and it is the smallest number divisible by every natural number from 1 to 10, except 7. Furthermore, one of the divisors of 360 is 72, which is the number of primes below it. 360 is the sum of twin primes (179 + 181) and the sum of four consecutive powers of three (9 + 27 + 81 + 243).

5. 36 (number) - Wikipedia

   en.wikipedia.org/wiki/36_(number)

   Aside from being the smallest square triangular number other than 1, it is also the only triangular number (other than 1) whose square root is also a triangular number. 36 is also the eighth refactorable number, as it has exactly nine positive divisors, and 9 is one of them; [3] in fact, it is the smallest positive integer with at least nine ...

6. 33 (number) - Wikipedia

   en.wikipedia.org/wiki/33_(number)

   33 is the 21st composite number, and 8th distinct semiprime (third of the form where is a higher prime). [1] It is one of two numbers to have an aliquot sum of 15 = 3 × 5 — the other being the square of 4 — and part of the aliquot sequence of 9 = 3 2 in the aliquot tree (33, 15, 9, 4, 3, 2, 1).

7. Divisor - Wikipedia

   en.wikipedia.org/wiki/Divisor

   Prime numbers have exactly 2 divisors, and highly composite numbers are in bold. 7 is a divisor of 42 because =, so we can say It can also be said that 42 is divisible by 7, 42 is a multiple of 7, 7 divides 42, or 7 is a factor of 42. The non-trivial divisors of 6 are 2, −2, 3, −3.

8. Lotería - Wikipedia

   en.wikipedia.org/wiki/Lotería

   Lotería (Spanish word meaning "lottery") is a traditional Mexican board game of chance, similar to bingo, but played with a deck of cards instead of numbered balls. Each card has an image of an everyday object, its name, and a number, although the number is usually ignored.

9. 133 (number) - Wikipedia

   en.wikipedia.org/wiki/133_(number)

   It is an octagonal number [1] and a happy number. [2] 133 is a Harshad number, because it is divisible by the sum of its digits. 133 is a repdigit in base 11 (111) and base 18 (77), whilst in base 20 it is a cyclic number formed from the reciprocal of the number three. 133 is a semiprime: a product of two prime numbers, namely 7 and 19.