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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
What is the number 2645.5669 in word form?
Two thousand six hundred forty-five and five thousand six hundred sixty-nine ten-thousandths.
What is negative integers number?
integers are basically any whole number, a negative integer is a negative whole number...such as -12
Why can there never be another pair of constructive numbers that are both prime?
Assuming you mean other than 2 and 3, there can't be any others because one of the two consecutive numbers would be even, in which case it is either identical to 2 or divisible by 2. Since 1 is not regarded as prime, this leaves only 2 and 3.
What are the bars in between numbers in math?
If you're refereeing to fractions then it is the solidus bar that separates the numerators from the denominators.
Prime numbers from 100 to 1000?
101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199 211 223 227 229 233 239 241 251 257 263 269 271 277 281 283 293 307 311 313 317 331 337 347 349 353 359 367 373 379 383 389 397 401 409 419 421 431 433 439 443 449 457 461 463 467 479 487 491 499 503 509 521 523 541 547 557 563 569 571 577 587 593 599 601 607 613 617 619 631 641 643 647 653 659 661 673 677 683 691 701 709 719 727 733 739 743 751 757 761 769 773 787 797 809 811 821 823 827 829 839 853 857 859 863 877 881 883 887 907 911 919 929 937 941 947 953 967 971 977 983 991 997 Please see the source below
Which numbers do not appear in the prime factorization of a composite number?
Any number that is
- not a prime,
- not a factor of the composite number
How do you double the inductance value without double the number of the turns?
In addition to the number if turns, the inductance also depends on the length and
diameter of the winding, the pitch (number of turns per inch), and the material of
the core if there is one.
Search on line and find an empirical formula for the inductance of a finite coil, and
then work to tweak the other parameters to alter the inductance as required.
Eight hundred eighty-seven thousand, three hundred twenty-one.
What is the pattern for 2 7 9 15 24?
There are infinitely many polynomials of order 5 that will give these as the first five numbers and any one of these could be "the" pattern. Short of reading the mind of the person who posed the question, there is no way of determining which of the infinitely many solutions is the "correct" one. One possible soultion, based on a polynomial of order 4 is:T(n) = (-2*n^4 + 27*n^3 - 121*n^2 + 234*n - 126)/6 for n = 1, 2, 3, ...
Notwithstanding todays modern notation of Roman numerals inasmuch that there is compelling historical evidence to suggest that the ancient Romans would have notated and subtracted the equivalent of 444 from 1999 using either of the following formats:-
IMM-IVLD = MDLV => (2000-1)-(500-56) = 1555
Remember that in arithmetic a double minus becomes a plus.
Alternatively by cancelling out like numerals:-
MDCCCCLXXXXVIIII-CCCCXXXXIIII = MDLV => 1999-444 = 1555
Todays rules governing the Roman numeral system were compiled and introduced during the Middle Ages so therefore it follows that they had little or even nothing to do with the original Roman way of calculating.
Values: M=1000, D=500, C=100, L=50, X=10, V=5 and I=1
Note: 5*I=V, 2*V=X, 5*X=L, 2*L=C, 5*C=D and 2*D=M
QED by David Gambell
How you know if 21 divides evenly into another number?
You just divide it by 21 and if there is no remainder then it went in evenly.
