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Numbers
Properties of Number 2
Two is the first even number.It is the smallest prime number with only two divisors, 1 and 2.Sum of all the factors of two is the next number i.e. three.Two is the only even prime number. (the oddest prime number)All the multiples of 2 ends in 0, 2, 4, 6, or 8.Two...
Special Property of Numbers 0 to 50
0 is the additive identity.1 is the multiplicative identity. 2 is the only even prime number.3 is the number of spatial dimensions in the world we live in.4 is the smallest number of colours sufficient to colour all planar maps.5 is only prime number which can be...
Properties of Number 1
One is the first non-zero natural number.It is an odd number.One is the first positive integer.It is the only natural number that is neither prime nor composite.One is the only positive integer divisible by only one positive integer. Rest all numbers are divisible by...
Magic of Number 9
Think of any random number which is completely divisible by 9. Let's say 783.Rearrange the digits within the number in any order, it will always be completely divisible by 9. 783 could be arranged as 387 OR 378 OR 738 OR 837 OR 873All the above numbers are completely...
Magic of Number 9 (Finding Remainder)
Think of any number which is not completely divisible by 9. Let's take 165.If we subtract 9 repeatedly from 165, it leaves 3 as remainder after subtracting 9 for 18 times from it. OR if we divide 165 by 9, it leaves 3 as remainder.The shortcut way is to add all the...
Magic of Number 9
Think of any number. Let's say 458.Add 9 to it. For example :- 458 + 9 = 467If the number obtained is a multi-digit number, add the digits of the number obtained. Here, sum of the digits of 467 is 4 + 6 + 7 = 23Now add all the digits of the original number, i.e. 458....