A prime number is a number that is divisible only by 1 and itself; it has no other factors. A composite number is a number that is divisible by more than 2 numbers. The factors of 253 are 1, 11, 23, and 253. Therefore, 253 is a composite number.
Prime numbers 1-100not composite?
2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97
Is 4564282 composite or prime?
4,564,282 is a composite number because you could divide by two. Another hint that it's composite is that it ends in a two. All even numbers greater than 2 are composite.
Can composite numbers have prime numbers as factors?
== == Yes. Once we open the field from integers to composite numbers, the gloves come off and lots of things are possible. Example: 1 1/2 = 3 x 1/3. The factor 3 is prime. All composite numbers have prime numbers as factors. Examples: 4 is a composite number of 2 x 2.
38 is a composite number of 2 x 19.
66 is a composite number of 2 x 3 x 11. == ==
What are all the composite numbers 1-100?
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100
What is the average of the first ten complete numbers?
if by complete you mean integers then the answer is (1+2+3+4+5+6+7+8+9+10)/10
=55/2
=27.50
if you dont mean integers ,i dont know
What are all the prime numbers?
It is impossible to list the infinite number of prime numbers. The prime numbers from 1 to 100 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.
Where did numbers first originate?
Thousands of years ago there were no numbers to represent two or three. Instead fingers, rocks, sticks or eyes were used to represent numbers. There were neither clocks nor calendars to help keep track of time. The sun and moon were used to distinguish between 1 PM and 4 PM. Most civilizations did not have words for numbers larger than two so they had to use terminology familiar to them such as flocks of sheep, heaps of grain, or lots of people. There was little need for a numeric system until groups of people formed clans, villages and settlements and began a system of bartering and trade that in turn created a demand for currency. How would you distinguish between five and fifty if you could only use the above terminology?
Paper and pencils were not available to transcribe numbers. Other methods were invented for means of communication and teaching of numerical systems. Babylonians stamped numbers in clay by using a stick and depressing it into the clay at different angles or pressures and the Egyptians painted on pottery and cut numbers into stone.
Numerical systems devised of symbols were used instead of numbers. For example, the Egyptians used the following numerical symbols:
The Chinese had one of the oldest systems of numerals that were based on sticks laid on tables to represent calculations. It is as follows:
From about 450 BC the Greeks had several ways to write their numbers, the most common way was to use the first ten letters in their alphabet to represent the first ten numbers. To distinguish between numbers and letters they often placed a mark (/ or �) by each letter:
The Roman numerical system is still used today although the symbols have changed from time to time. The Romans often wrote four as IIII instead of IV, I from V. Today the Roman numerals are used to represent numerical chapters of books or for the main divisions of outlines. The earliest forms of Roman numeral values are:
Finger numerals were used by the ancient Greeks, Romans, Europeans of the Middle Ages, and later the Asiatics. Still today you can see children learning to count on our own finger numerical system. The old system is as follows:
From counting by means of �flocks� to finger symbols our current numerical system has evolved from the Hindu numerals to present day numbers. The journey has taken us from 2400 BC to present day and we still use some of the old numerical systems and symbols. Our system of numerics is ever changing and who knows what it will look like in 2140 AD. Will we still count using our fingers or will mankind invent a new numerical tool? Sanscrit letters of the 11. Century A.D. Apices of Boethius and of the Middle Ages Gubar-numerals of the West Arabs Numerals of the East Arabs Numerals of Maximus Planudes. Devangari-numerals. From the Mirror of the World, printed by Caxton, 1480 From the Bamberg Arithmetic by Wagner, 1488. From De Arts Supp-urtandi by Tonstall, 1522This chart shows the change of numbers from their ancient to their present-day forms.
Which are the numbers which are neither prime nor composite and why?
All primes have two positive divisors.
There are only two integers that are neither composite or prime and they are 1 and 0.
The number 1 has only 1 positive divisor, itself.
The number 0 has an infinite number of divisors.
74 is composite The definition of a prime number is one that is only divisible by itself and one, therefore any even number (apart from 2) cannot be a prime number
What are the composite factors of 18?
18 = 2*3*3 So composite factors of 18 are: 2*3 = 6 3*3 = 9 and 2*3*3 = 18 These are all the factors of 18 other than 1 and its prime factors (2 and 3)
From the fact that it ends in a 5 you should know that it is divisible by 5. So it is composite.
The full factorisation is: 1025 = 52 * 41
Oh honey, 1 is about as prime as a wilted lettuce leaf at a salad bar. It's not prime, it's not composite, it's just hanging out on its own in a category all by itself. So, in the world of prime numbers, 1 is basically the oddball sitting alone at the lunch table.
Is 276 350 prime or composite?
276350 is a composite number because it has 12 factors: 1, 2, 5, 10, 25, 50, 5527, 11054, 27635, 55270, 138175, and 276350.
Is 56 and 17 a composite number?
56 + 17 = 73
The only factors of 73 are 1 and itself. It is a prime number, not a composite number.
What is the product of two composite numbers and am between 11 and 17 What are the prime numbers?
The product of two composite numbers is between 11 and 17.
12 = 2 x 2 x 3, so it cannot be the product of two composite numbers, because there are only three prime factors.
13 is prime.
14 = 2 x 7, so it cannot be the number.
15 = 3 x 5, so it cannot be the number.
16 = 2 x 2 x 2 x 2, so it is the product of two composite numbers, 4 x 4.
16 is the only number that fits. Its prime factors are 2, 2, 2, and 2.
What are the 3 composite numbers between 30 and 50?
All of them are 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 50.
Name two years after 2005 that will be composite?
One year after the year 2005 that will be composite is 2010
and i am pretty sure that the other year is 2020.