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Numbers
Numbers are our way to quantify, label, and organize the world around us in a logical manner. However, the systems used to obtain this goal differ geographically, historically, and by relative utility. All questions pertaining to numbers, including historic labeling systems, bases of numerical systems, constants, and the various ways they're grouped together, should be placed into this category.
46,867 Questions
Which is are not consideration when reading math?
The mating practices of porcupines are not a consideration.
How can the prime factorization of 2 numbers be used to determine their GCF and LCM?
Example: 30 and 42
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF
Combine the factors, eliminating duplicates.
2 x 3 x 5 x 7 = 210, the LCM
What are all the prime numbers from 1-99?
The prime numbers from 1-99 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97.
The prime factorization of 150 is 2 x 3 x 5 x 5 (2 x 3 x 52 in exponential notation).
What is the word form for this number 1456987256984512369?
One quintillion, four hundred fifty-six quadrillion, nine hundred eighty-seven trillion, two hundred fifty-six billion, nine hundred eighty-four million, five hundred twelve thousand, three hundred sixty-nine.
What are all the negative non integers that have a product of 20?
There are infinite number of negative non integers that have a product of 20. Any two negative fractions can make a product of 20. e.g.
-3/20 * -800/6 = 20
-3/8 * -320/6 = 20
-9/7 * -140/9 = 20
The list is endless. Only make sure you select both negative fractions to get a positive 20 and when selecting the fractions the numerator of one number is divisible by the other number's denominator such that the factors cancel to give 20.
Why use a leading zero for decimal numbers for instance -0.723?
Only to draw attention to the decimal point which might, otherwise, be missed.
What number is the product of a given number and an integer?
An integral multiple of the given number.
What is the sign of 3 positive integers and 5 negative integers?
The answer is u keep the sign of the higher number
Is there more prime numbers between100and200 or200and300 why?
There are more prime numbers in the range 100-200 than in the range 200-300.
There is no particular reason.
100-200: 23 primes
200-300: 16 primes
300-400: 16 primes
400-500: 17 primes
500-600: 14 primes
600-700: 16 primes
There is no clear pattern.
The number of primes that are less than a number k is approximately k/ln(k) where ln(k) is the natural logarithm of k. For intervals of equal size, this implies a very gradual decrease in the number of primes: but only approximately.
