1, 2 and 4 are all factors of 4 and their lowest common multiple is 4.
1, 2, 5 and 10
Every positive integer greater than 1 can be expressed as the product of a unique set of prime factors. The count of these factors is the prime factors number for the number.
1 and itself, as 73 is a prime number.
8 is a composite number because it has more than 2 unique factors. The following are the factors of 8: 1, 2, 4 and 8
The Fundamental Theorem of Arithmetic states that there is a unique factorisation for any integer - up to the order of the factors. This means that for any number the list of its factors and their multiplicities is unique. That statement is no longer true if 1 is considered to be a prime.
A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 39 iis composite.
unique number: The number 1 has only one factor. (It is therefore unique.)
The number one has the unique property of multiplicative identity: any number times 1 is the same number.
Yes, 1 is unique because it is considered neither prime or composite.
A factor is a number that can be multiplied by another whole number to equal your original number.For example: The factors of 10 are - 1, 2, 5, 10 (10 has 4 unique factors)To find a number with 13 factors, it must be fairly large.We know the number you're looking for will have at least 2 factors, 1 and itself.So we only need to find 11 more.In fact, we can choose factors and make the number ourselves!Remember, factors must be unique. They cannot repeat. A handy way to do this is to use prime numbers.1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, and our number. (13 factors)To find your number, multiply ALL of the prime numbers together. (Not 1, and not our number)2*3*5*7*11*13*17*19*23*29*31 = ???You'll find that the number you're looking for is200,560,490,130In fact, this number is the smallest composite number with the first 11 primes as factors!
In number theory, the fundamental theorem of arithmetic, also called the unique factorization theorem or the unique-prime-factorization theorem, states that every integergreater than 1 either is prime itself or is the product of prime numbers, and that this product is unique, up to the order of the factors.
Here are some:It has only 1 and itself as unique factors. (They cannot be the same.)It ends (if 2 or more digits long) with the digits 1, 3, 7 or 9 only.