What is factor and prime number co prime number
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FACTOR - In mathematics, factorization or factoring consists of writing a number or another mathematical object as a product of several factors, usually smaller or simpler objects of the same kind.
PRIME NUMBER - In math, prime numbers are whole numbers greater than 1, that have only two factors – 1 and the number itself. Prime numbers are divisible only by the number 1 or itself. For example, 2, 3, 5, 7 and 11 are the first few prime numbers.
COPRIME NUMBER- In number theory, two integers a and b are said to be relatively prime, mutually prime, or coprime if the only positive integer that divides both of them is 1. Consequently, any prime number that divides one does not divide the other. This is equivalent to their greatest common divisor being 1.
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Answer:
Factor:- A factor is a number that divides into another number exactly and without leaving a remainder. Most numbers have an even number of factors; however, a square number has an odd number of factors. A prime number has only two factors - the number itself and 1.
Prime number:- a number that is divisible only by itself and 1 (e.g. 2, 3, 5, 7, 11).
Co-prime:- When two numbers have no common factors other than 1. In other words there is no whole number that you could divide them both by exactly (without any remainder). 21 and 22 are coprime: • The factors of 21 are 1, 3, 7 and 21. • The factors of 22 are 1, 2, 11 and 22.
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