47 is a prime number.
The prime numbers greater than 21 are 23, 29, 31, 37, 41, 43, 47, etc.
47 is a prime number because it has only two factors which are itself and one
2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67
Itself and one because 47 is a prime number
Itself and one because 47 is a prime number
Prime factorization refers to whole numbers, not decimals.
47 15 = 3 x 5 21 = 3 x 7 25 = 5 x 5
47 is prime. A number that is prime has only whole factors one and itself. 47 can not be divided evenly without a remainder or decimal.
987 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 8 factors of 987 are 1, 3, 7, 21, 47, 141, 329, and 987.The factor pairs of 987 are 1 x 987, 3 x 329, 7 x 141, and 21 x 47.The proper factors of 987 are 1, 3, 7, 21, 47, 141, and 329 or,if the definition you are using excludes 1, they are 3, 7, 21, 47, 141, and 329.The prime factors of 987 are 3, 7, and 47.The distinct prime factors of 987 are also 3, 7, and 47, since there is no repetition of factors.The prime factorization of 987 is 3 x 7 x 47.
prime, because it can't be divided by anything but one and it's self
It is a prime.